That's okay.
What is it "that you don't see"?
Moreso that I just don't agree with your take. That the difference is related (mainly) to historic (and possibly) present discrimination. (and will naturally correct with time)
Women were outsiders in most professions for a long long time -- it wasn't the norm or women to work, especially in professional capacity.
But that's all changed, obviously. Women are graduating college in much greater number and are graduating with more professional degrees than men.
They've become rather dominant in some fields. But they pick certain fields over others, presumably based on interest.
They're not picking professions (nearly as often) in the hard sciences or engineering or the like. A good rule of thumb is that the further away from humans and living things in general your work takes you, the more likely you are to be male.
As a society becomes more egalitarian -- people free to do as they wish -- any innate differences in the sexes will be clarified. If across all egalitarian societies you see a clear and persistent pattern emerging in occupation choice as it relates to the sexes, that would tend to say something.
Additionally... if someone is mechanically or technically inclined -- the people that do really well in these professions -- it's expressed early in life via simple interests. Tearing apart motors or programming something, for example. They don't have to be guided this direction -- they do it because it's innately interesting.