Very true - and when the Wasp was critically injured, it was Dr. Donald Blake who performed the operation that saved her life. IIRC, he also operated on Captain America at least once.
Before running his own safari company, Jon Sable was an Olympic pentathlete, explaining why he’s a crack shot with the stamina of a cross-country runner. He then became a costumed super-hero with pretty much the same skill set, but set up a secret identity as best-selling children’s author Buford Flemm, who “turned out to be more popular than Dr Seuss,” with book sales in the billions (and that’s before counting the games and the toys and the television special).
The MAD magazine version “Superduperman” from 1953 has Clark Bent as pretty much incompetent at everything: http://www.pulpartists.com/Bio%20Materials/Wood/53-04,Superduperman.jpg (See Lower Right panel, coff, coff)
Deboning?
It seems to me that superheroes for the most part are very competent at their jobs, examples above with Clark Kent and Mr. Fantastic being ones that I would point to. I think though that often the superhero life gets in the way of the hero’s private life – see Peter Parker for examples.
The 50’s tv series with george reeves had a non-bumbling clark kent – was played very well, and the other characters would look to him if they needed some serious sleuthing or thinking through a conundrum.
An interesting question:
Are Clark Kent and Peter Parker actually good at their jobs, or are they hacks because they rely so heavily on “interviews” and “candid photos” of their alter egos?
Peter Parker, especially, wouldn’t have a job at all if not for his frequent photos of Spiderman.
Depending on how thin you split that hair, Kent was getting scoops thanks to his powers as far back as SUPERMAN #1. I mean, the dude has telescopic x-ray vision and super-hearing; if he wasn’t so busy doing newsworthy stuff as Superman, he’d be scoring investigative coups without bothering to get involved.
Reed Richards may be a brilliant technological inventor, but at least one early Lee / Kirby story showed that he was a colossally bad investor / businessman - the story (I forget which issue) has the FF evicted from the Baxter Building after Reed makes some bad stock investments and they can’t pay their rent! The team are then forced to merchandise themselves, in this case appearing in a “Fantastic Four” movie.
Unfortunately for them, the movie studio was owned by Namor the Sub-Mariner (still their enemy at the time.) How did Namor end up in control of a Hollywood movie studio? He scoured the bottom of the ocean for sunken pirate treasures and used the accrued wealth to make his own stock investments, including a hotile takeover of the film studio! Apparently Namor was TERRIFIC at picking stocks.
Ah, early Marvel Comics and it’s gritty realism.
Another wrinkle: the Samaritan from Astro City basically outsourced his (publication fact-checker) job to an AI, programmed to make just enough mistakes to turn in a good but not suspciously perfect job.
I’m not sure if this counts, but Captain America was a fairly mediocre soldier before getting the Super Serum.
He was 4F before the serum and disqualified from service because of that. There were some early comics where Cap acted like a clumsy oaf in front of his sergeant to conceal the fact that he was Captain America, but I don’t know how long they actually kept that up. I kind of like that Cap doesn’t really have a secret ID. He doesn’t really care and he doesn’t really need one either.
Spiderman used to web his automatic camera to a wall before a battle that took him all over Manhattan. And then he’d go to J. Jonah with perfectly composed negatives of him and the villain in mid-air. How staggeringly good do you have to be to accomplish that?!?!?!
The OP references movies. That stops the thread right there. The movies are not canon; they’re separate universes. Comic book superheroes - which means mainstream Marvel and DC superheroes; sorry independents - are all omnicompetent. You can’t be a true super hero unless you are super all the time, way down into your soul.
And Steve Rogers has 50 years of secret identity issues. He’s split off or discarded Captain America a half dozen times so that he can have a life as Steve Rogers. How can you say he doesn’t care?
While it may make him a successful journalist, I don’t think a career based on lying to the readership/viewership is generally considered being a good journalist.
What’s the lie?
Peter Parker has always wanted to be a scientist, but his adventures would get in the way. He’d get pulled away to the Secret Wars, and his fruit flies would breed out of control or some such.
Oliver Queen was a billionaire, but he lost his fortune basically by ignoring his business and letting himself get framed. I would say that he’s kind of the paradigm of the guy who let his day job languish after he became a superhero.
Imagine if it had turned out that Deep Throat was Carl Bernstein.
It is generally bad journalism to hide, let alone actively lie about, your involvement in the story you are covering.
Also, the extent that Clark Kent covered the exploits of Superman, it is an unacceptable conflict of interest.
Further, even when not covering himself, his superpowers grant him access to information that is unethically acquired. Using see through vision to look into a private residence and see the meeting of the corrupt politician and super hearing to know that they are discussing their latest graft isn’t any better than the phone tapping scandal that got Murdoch in trouble.
So, again, he may be a wildly successful journalist but I would question whether he is a good journalist.
In the case of Clark, his reportorial skills are exactly as good as the story calls for, no more or less. Both the gold and silver age versions of Clark were sometimes chided for not being aggressive enough in getting “scoops.” But of course, Lois Lane had to be more aggressive, or she wouldn’t have needed rescuing by Superman.
We need to remember Perry White’s description of Clark from the first (Christopher Reeve) Superman movie.
Additionally, in the 80’s, Thor adopted the disguise of construction worker Sigurd Jarlsen, whom you’d have to imagine was pretty handy with a hammer! 
Conceded. 
Queen inherited a company about the size of Wayne International and ran it into the ground. Last I saw, he worked in Black Canary’s flower store, barely. I don’t think he’s ever worked a real job, with regular hours reporting to someone else.