Seems like natural selection would take care of this sort of thing quickly enough...
Here's just one paper:
http://www.jstor.org/stable/585126?seq=1#page_scan_tab_conte...
Individual women who happen to be relatively well known have nothing useful to tell you about social trends.
Having evolved consciousness, we now have the ability to spread ideas, inventions, values, etc. -- memes if you will. This is why humanity has beat all other species, and what drives progress on a societal scale. Memes evolve much faster than genes.
The intelligent career driven people are busy replicating memes -- inventions, discoveries, institutions, influence, etc. The best memes survive and evolve. Is it better for humanity to discover penicillin or preserve a single bloodline?
ps. edit gender