It's a sort of piss-take on culture, because a drag queen is a clown - a parody of our society. It's a sarcastic spoof on culture, which allows us to laugh at ourselves - but in a way that is inclusive of everyone.
RuPaulWhatever you proclaim as your identity here in the material realm is also your drag. You are not your religion. You are not your skin color. You are not your gender, your politics, your career, or your marital status. You are none of the superficial things that this world deems important. The real you is the energy force that created the entire universe!
RuPaul