A horde of trailer-park visigoths can sack the Capitol and Republicans say "what's the big deal?" But let one guy show up in casual clothes and they lose their goddamn minds.
Assuming he's taking all the legal bribe money anyway... If our politicians were actually living off their salaries it's actually pretty ruff to have somewhere to live at home and DC, while having a ton of cash to blow.
That being said, they all have a bunch of legal bribery slush fund money that it's completely fine for them to buy clothes with. The amount of shit they can call a campaign expense is astonishing...