argh, evil corporations looking to sell stuff... there choice of models for advertisement has nothing to do with the fact people buy those more frequenetly, its all just there brainwashing attempt! corporations don't want to make money, there just trying to make us feel bad about ourselves..
look, man have less pressure because women have a larger diversity of opinions about what counts as hot (research linked in my post above), and for the same reason the pressure is less affective - i trust that it is a well known fact that man do like scoring and that looks contribute to the suceed rate of that happening - but if you want to be a good looking man, there are a lot of ways you can go, and chances are you already fit a good number of women's profiles.
women don't get that luxery, which i'm sure would have being bad enough if it just stayed about getting men. but at some point in our anthropological past, the beast took a life of its own, and now takes an immense inflouence of the social status of every female from teenhood to menopause.
so which standard is shaping the other one? are women judging themselves based on what attracts man or are man deciding what looks good based on what women scale themselves by?
there was a research published on American Minds suggesting that its more of the later: both man and women where asked to rate people of the opposite sex in either a closed or open setting. the scores women gave man barely changed, but man where a lot more inflouneced by what others - both man and women - thought is attractive. we are not only unanimous in what we find attractive, we are fucking sheepish about it.
TL

R: science variifies monster's man-hating comment to be completely true.