In terms of latenight, the racy edge will remain, but you'll find the shows will reflect whatever attitude the host may have. It's writing funny. That's what's going to get you noticed. Then it's writing in the style of the host. People try to write for Dennis, and it tends to sound like a caricature.
Society rewards guys for being funny.
If you're in high school and if you can't be the quarterback, the best athlete, or the smartest kid, the next best thing is being the funny guy. I don't know if women are rewarded for being funny or silly. When I look at the 900 stand-up tapes in my office, I'd say 850 are men. I don't know why. Some things may have a little more attitude and sound like something Dennis would say, but ultimately it comes from a writer who writes funny.