If you change the gender of a name and leave everything else constant on an academic CV, acceptance rates go down from 70% to 45%. http://dimer.tamu.edu/simplog/archive.php?blogid=3&pid=1...
If it were actually the case women were inherently less interested in science, sure, I wouldn't care, but discrimination exists. Much more subtly than it used to, but it's still there, and hence still a problem.