I'm no expert in morals, so I won't comment on that.
But wrong or not I'm pretty sure it's a useful tool in assessing people. Not assessing their innate "good given looks" of course, but to look really good you have to put effort into it. Real effort - studying fashion trends, purchasing decisions, time spent on personal grooming. Time spent doing that is time they could have doesn't dining other things, like learning their craft. Go too far the other way to the extent of ignoring personal hygiene and it shows a lack of respect for their fellow workers.
I've never interviewed anyone who deviated too far from the norms, so they are fairly well known and respected. Still, it's not difficult to imagine an attire that would get a near automatic reject. It would trigger questions that help me understand why they chose to look so different from the norms, like cultural background and family background - things I normally wouldn't spend any time on.
I didn't want to put too many caveats in my original statement, but yes - there's a difference between judging someone on physical attributes they can change vs. on attributes they can't. How you dress is a valid signal of something, how much effort you put into your appearance is a valid signal of something too.
But even past a baseline of putting some effort into looks, there is still some difference between how good different people look. Judging based on that is stupid (because it's not actually correlative with anything) and immoral (same reason).
I'm no expert in morals, so I won't comment on that.
But wrong or not I'm pretty sure it's a useful tool in assessing people. Not assessing their innate "good given looks" of course, but to look really good you have to put effort into it. Real effort - studying fashion trends, purchasing decisions, time spent on personal grooming. Time spent doing that is time they could have doesn't dining other things, like learning their craft. Go too far the other way to the extent of ignoring personal hygiene and it shows a lack of respect for their fellow workers.
I've never interviewed anyone who deviated too far from the norms, so they are fairly well known and respected. Still, it's not difficult to imagine an attire that would get a near automatic reject. It would trigger questions that help me understand why they chose to look so different from the norms, like cultural background and family background - things I normally wouldn't spend any time on.