It depends, we have the dumb blond stereotype and I know of developers who are attractive and have a harder time interviewing because they get perceived as dumber. It could be that there's an unconscious bias of hiring someone that looks like a stereotypical movie hacker (long hair, beard, wearing old tech swag, etc). This is of course changing slowly after Apple made a push on cleaning up the image of all the higher ups to have them be part of the presentations and now all companies seem to hire PR consultants that work the appearance of their clients. You sort of see this aesthetic trickle down with time.
There are only two ways to fix what he had. First is a hair transplant, he would be around NW6 now so it was a lot of grafts. Second way is a hair system (rebranded toupee), you can't really tell if someone is wearing one if it's good, you can have exposed hairline, modern hair styles etc.
There is probably an interesting article to be written about how the pursuit of superficial qualities harms deep qualities. E.g. rock bands of the 70s tended to be quite ugly, but they made great music, while bands today look very good, but make terrible music.
Amusingly, Sir Ive is an example of both: back when he was a goofy mustachioed designer he came up with beautiful designs like the iMac, and then when he spent time at the gym and getting fancy T-shirts he produced … a bunch of metal-and-glass rectangles, and disaster of an HQ.
Imma have to disagree with you hard on the first paragraph haha. Rock became oversaturated and stagnated as a genre, I'm not sure the clothes had much to do with it.