No, I think it's more complicated than that. Sociological forces exist, but so do other factors. There is the greater male variability hypothesis for example. There is also evidence to suggest that in general women tend to gravitate to jobs that deal with people and men gravitate towards jobs that deal with things. There is also the gender equality paradox - as countries become more egalitarian (like Scandinavian European countries for example), the gender gap actually increases.

I am not saying any group is better than any other group, and I am not trying to pigeonhold anyone either - the in group variance is actually higher than the variance between groups, so there are women qualified for any position. Equality of opportunity should be one of the main goals of our society, however expecting an even 50/50 split in anything is ridiculous.