It is richer in metals than most asteroids. This likely came from the core of a proto planet. Other asteroids mostly came from either coalescing from dust as they are, or are parts of the upper layers of proto planets that got broken up.
There are thousands or tens of thousands of asteroids that are likely the same composition more or less, but they are going to be sized from refrigerators to small buildings. This one is hundreds of miles.
If we do develop any sort of space mining operations, this will be an excellent location to start gather materials.
Very little, if any, would make its way back to Earth. What needs we have here can be easily filled by those smaller asteroids you speak of.
As far as the economy of it goes, sure, it’s not worth what CNN says, as there isn’t that much money in the world, not be orders of magnitude. However, it would be worth quite a bit, as there are useful materials, and they don’t have to be lifted from the Earth.
OTOH, bringing back some of the platinum from it or from other rocks would damage the price of platinum, but that’s not going to hurt the economy, just people that invest in platinum. What it could do is create all new industries and techniques, as platinum is actually an excellent catalyst for a number of chemical reactions and is also a great conductor.
About half the cost of your catalytic converter is in the few grams of platinum in it. If cost were not a factor, we could probably make more efficient and smaller ones, if we didn’t mind using a couple ounces of it.
We could save quite a bit of electricity if long distance transmission lines were made of platinum. Silly to even think about, when there isn’t enough mined in the history of mankind to go for more than a few dozen miles. Get a good supply though, and it’s not unthinkable.
Iridium is another one. It has pretty much has no industrial or commercial applications, simply because there is not enough of it to do anything. If someone finds a great use for it, it won’t matter, because they can’t get enough to actually use it for that application. Drop down a few thousand tons of it, and that may very well change.
Pretty much everything else is better kept in space, though, as its primary value is its location.