I'm a somewhat open minded man I like to think but unfortunately can't even pretend to think this is possible given my studies of our species, the way societies are run and our colourful history.
Intimacy doesn't stimulate orgasms.. Friction does! When you strip back the "feelings" most feel during sex it's basically just friction.
Sex isn't a want but a need of the species. If no one was horny or had the urge to make coitus our species wouldn't exist in < 100 years. On an individuals basis.. Yes, it's not necessary but as a whole without being wired to reproduce in the way we are.. Our species dies.
Not get rid of sex!! You can't do that. =) I'm referring to the preoccupation we seem to be having with sex. Do you think 'sex addiction' was even a consideration 1000 years ago? I mean maybe, but, honestly it seems like we've put too much focus on one bodily function. We also have an unnatural relationship with eating.. but most people realize that now.
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.