7. Their wives become bitches once they achieve stature and power, and they realize they have their husbands over a barrel given the political pressure to keep up a charade.
Cynical as it may sound, a lifetime commitment advantages an attractive female much more than a high status male. The high status male can get more powerful with time, whereas the attractive female can only get older. This is why many women prefer much older men - the idea is that much older men are less likely to get tired of their physical appearance in the time they have left.