DOS was built in a basement. Pretty sure suit and tie wasn't the dejour whilst they were doing it.
Linux was a hobby project. Pretty sure that slacks featured more than a blazer.
I would absolutely not expect a business profile image, regardless of the message. Nor do I get why you think it is so essential.
Half the red team industry are furries. Would you criticise them for not using a mugshot? Because a lot of them don't, whilst posting CVEs that affect half the world.
It's totally wild that you think the only alternative to anime furries are suits and ties.
Just what kind of fucked up environment did your workplace have with such a policy?
:-)