Fashion has it's importance depending on your position of power. You wouldn't dress like an utter slob if you were a CEO of a major corporation now would you? Like it or not, this is a superficial world and you will be judged by the way you look.
Now as for those cum guzzling camels, well, they're just kids enjoying themselves at a club, trying impress ladies. Nothing wrong with trying to look good and clean, but like Carmi said; there is being fashionable, and trying to be fashionable.