That's not true. Being overtly self-aggrandizing to women is a turn off. It makes sound like you are trying too hard to impress her. (Cockiness works, but not overt boasts).
Men do need to be more aggrandizing in professional life. Men do not carry a baby to term and nurse it for years. All they bring to the mating game is wealth, status, and genes. Thus, professional success is much more important in order for a man to attract a mate. Thus men are much more aggressive and do whatever it takes to rise the ladder.
On the flip side, when a women is self-aggrandizing it is quite a turnoff to a man. It much more actively harms her reproductive success. So women learn not to do it, and that rubs off in professional life.
When I drink I tend to be a bit of a jerk. I tend to be blunt and not care what people think about what I'm saying. I also tend to view myself as being more smooth/interesting/whatever than I actually am. Of the times I've gone out and barely drank or not drank at all, I've never left with/taken home anyone. There have been at least five separate occasions where I've been somewhere between pretty drunk and absolutely wasted and ended up going home with someone (and this isn't the beer goggle effect at work either).
Call it an anecdote or a small sample or whatever you want, but being more aggressive and boastful and jerk-like has clearly worked better for me, even if I feel kind of bad about it sometimes the next day.
Men do need to be more aggrandizing in professional life. Men do not carry a baby to term and nurse it for years. All they bring to the mating game is wealth, status, and genes. Thus, professional success is much more important in order for a man to attract a mate. Thus men are much more aggressive and do whatever it takes to rise the ladder.
On the flip side, when a women is self-aggrandizing it is quite a turnoff to a man. It much more actively harms her reproductive success. So women learn not to do it, and that rubs off in professional life.