Er, no. She’s saying that it is a very simple criteria by which to measure an applicant’s measure of a) interest, b) effort, and c) awareness of job requirements. Clothing standards (and particularly neckties) are largely arbitrary for most jobs, but in an interview that lasts, say, half an hour, you have only a short amount of time to assess the candidate’s sincere interest and willingness to perform the job tasks and be responsible.
Showing up appropriately attired (not too causual nor too formal) indicates that you understand, at least on a superficial level, what is expected in the position and that you have it sufficiently together to be clean and neat in appearance. It’s not a causative valuation, but I’d argue that showing up smartly dressed and on time is strongly corrolative to an employee that will routinely clock in on schedule, perform the expected tasks, and will show respect to customers and coworkers, whereas someone who comes to an interview looking as if they just climbed out of bed is more likely to be they guy who doesn’t get in until 10.00am, takes a long lunch, and ignores his coworkers’ requests for cooperation.
It’s an imperfect measure to be sure, but one that can be assessed in a short interview. Frankly, if I could I’d wear a kilt to work all the time, and I don’t think it would impact my work at all (though my cow-orkers would be freaked out about it, no doubt), but I don’t think it would reflect so well on the company when a visiting colonel or MDA executive sees me walking through the halls barefoot in t-shirt and tartan…so I tough it and wear “the uniform”, i.e. chinos and a button up shirt. (No ties here, thankfully, unless giving a presentation to some muckity-muck.)
But if I ever get a gig as a screenwriter, I’m definitely doing the bathrobe and swimming trunks thing, complete with White Russian, unkempt hair, and sunglasses. Think The Dude. “Hey, careful, man, there’s a beverage here!”
Stranger
“That rug really tied the room together.”