I've been finding that the majority of programmers are male, and the majority or project managers are female.
I also believe that "project management" tends to be a work-dodge for the PM, and a good way to "pork" the client for excess billables, but thats just me....and all the other programmers, and the clients too!
The processing cells make you smart. The networking cells enable you to get along with folks without being slapped silly with a 2X4 every 20 minutes or so until you figure out that he's your sergeant, and that's your place in the formation.
Men and women are different, and in any "developmental" work place, those differences are going to assert themselves in the most powerful ways.