Not really. I imagine it as a normal contemporary world, just with casual snuff.

The balance is kept because people who enjoy snuffing others are in the minority - most girls live normal full-length lives, most men are not into snuff.

But if someone wants to kill someone else it's no big deal, people just let people have fun. :)

Obviously girls and women are over-represented in my stories because that's what I'm into and I mostly write for myself.