I agree with the history of the term, but when I use it, it's not a blanket reference to low class or poorly dressed folk, but to big-spending folks from the suburbs who invade the city on weekends to party (emphasis on "party" as a verb). They're often upper middle class and quite expensively dressed and fake tanned, and they seem to enjoy nothing more than dressing up exactly like their friends and getting drunk in a Hummer stretch limo while driving from megaclub to megaclub.

While the term certainly has a pejorative connotation (and different people may use it in a very different way than I do), I think it's also quite descriptive of a group of people who seem to really enjoy the club experience in a far less snobby way than the Hamptons crowd. The OP's suggestion that he doesn't care about the "somebodies" suggests that he, like the B&T folks, just wants to go to a club and have a good time. And there really isn't anything wrong with that.