I think its more related to who wields more power. I agree to ur observation and am not arguing abt existence of MCPs ! but i have also seen women in the position of power behaving in the same way.. I think our old proverb fits well - jiski lathi uski bhais. But yeah, to behave similarly, women definitely needs to have more authoritarian power then a corresponding male and that will only change if the number of women in the workplace increase. Given, that with the increase in number, all those women who behave "womenly" change that and behave in a more professional way. ( i am refering to one of your earlier posts / discussions)

unfortunately..it is as true now as ever has been in history
On a related topic, see http://awesome.goodmagazine.com/transparency/006/trans006girlpower.html
Half the world is female, yet there are only 10 country leaders...