We live (atleast over here in canada / usa) in a land of excess where sleeping with multiple partners is considered normal if you are a successful individual.

The media and popular culture is having a large effect on this.. Young girls now wear make-up and revealing clothes because that is what their role models on TV do.. And parents are too busy to teach their kids their own self worth and instead allow the over-sexualization to continue.

Our primitive urges will always be there.. It's what we are.. However I do agree with you that the world is a bit over bearing when it comes to shoving sex in our faces.