i believe that a black suit and white shirt is a very respectabel looking uniform, and that’s one reason why they wear it. same with the hat.
i myself would only marry someone who wore this levush because of that reason, not because i think he has better yiddishkeit – i’m just into looking respectable.
just about that comment before ‘was the yo really necessary’ – who cares? obviously he felt the need to say it. and it’s not a bad word – i say let it be!