Maybe you. I sweat a lot and if I'm wearing polyester, I stink so much even I can't bear it. I would need at least three suits a week and they would need to be cleaned each week. Tossing cheap cotton clothes into washer every week is much easier and I always wear zip-up hoodies when it's cold, so it's easier to thermoregulate.

So that brings with it one of the following: (1) Be very careful, to an uncomfortable degree, when wearing a suit, or (2) run around in a dirty suit for a while.

Doesn't seem too practical.