That's your theory? Women participation in math and the physical sciences is extremely high relative to their participation in software, where it used to be much, much higher (same as in other professions) and is constantly declining. That decline actually coincides with increasing, rather than decreasing salaries and prestige, and is not due to increasing work hours (that are lower in software than in medicine and law, where women participation is high). Software is a very clear anomaly.

That theory is even wrong for science in general, especially considering that women participation has been increasing, and that some scientific fields -- that are just as demanding -- are actually dominated by women.