I understand your point, retro.
But there are a lots of girls who are simply not nice. Girls whom you wouldn't want to drink in any place where you were with your friends.
I don't think you should necessarily judge people by whether or not they are "role models". It's too hard to say what a role model is.
Would you want a child to emulate a rich pop star like Cheryl Cole (who punched a lavatory attendant in the face), or a famous footballer like Stephen Gerrard (who punched some poor guy in a night club), or England captain John Terry (who thinks its okay to have sex with his friend's wife), or Ashley Cole (who sent photos of his privates to some girl when he was still married), or perhaps a Member of Parliament (dishonestly cheating on your expenses), or any number of girls whose only ambition as regards "making a living" is to have sex, have children, and hope that you and I keep paying enough taxes to pay for their cigarettes?
They may not be university professors, but a lot of these topless girls are nice girls, who work hard, and don't expect the "system" to look after them.
There's good in everybody. They are just normal girls, with slightly unusual jobs.