You basically describe highschool girl rivalry and then call it masculine! lol
Selfish behavior is unfortunately becoming more common, but it is neither masculine nor feminine. Currently it is worse amongst women (esp young ones) than men, but it has not always been that way and now men seem to be catching up. Selfishness has always existed in cultures most masculine and feminine. About your post early though about how men cause the violence in society and how there would be none if women ruled: here is a good example that humans are cruel and violent, regardless of sex.
EDIT: In fact mate, selfish behavior is contrary to both traditional ideas of masculinity and femininity! Maybe not in our growing gang culture, but at least where I live ideas of masculinity are tied up in ideas of chivalry, and femininity in defined very much in terms of lady-like behavior. Both discourage the type of behavior you are talking about, which has always ran contrary to the ideals of gender expectations.
Bookmarks