1. Men control the vast majority of the media - men are not nearly as inundated with pressure to look a certain way. Men don't care quite as much how they compare to each other ... unless it's a phallic matter, then they do care.
2. Women are conditioned from birth to care more about aesthetics - by both genders. Studies show that girls in grade school are praised more frequently for their handwriting than they are for critical thinking. "Be happy who you are and quit being jealous"? Are you volunteering to recondition every woman in developed countries? Frankly, I don't think you mind women competing with other women, because I think you like to watch, and I think you like that Marisa Miller's ribcage is completely visible in your avatar. Why else would you ignore her best asset - that being her ass?
3. Again, see #1 - men control the vast majority of what we see - via television, newspaper, magazines, billboards, internet, etc. You can't turn around without being subjected to media influence and its values. Women have been conditioned for thousands of years that her most important contribution to society is how she looks to it. There are exceptions to every rule, and sometimes there are signs of progress, but for the most part, it's a man's world. As women, we don't create our own problem, we resume where other women left off, and our aesthetic values were not created by ourselves.
I realize that I will never change your ignorance by making a few posts on the internet, but it does make me feel a little better to publicly call you ignorant asshole.