Differences at the top (and indeed bottom) end of the curve are important, because they might explain differences in achievement in certain professions. There w

Differences at the top (and indeed bottom) end of the curve are important, because they might explain differences in achievement in certain professions. There was a recent case with an Italian physicist from CERN getting in trouble for using that very argument (if the IQ curve for men is broader, this would explain why there are more men than women at the top of that profession). I note that we don't have issues with men being over-represented on the other side of the curve (mental issues, violence, etc.) We're not calling the police "systematically sexist" despite the fact that most of the police shooting victims are men, for example. There is no call to have gender equality in prisons or mental hospitals.