> If there are complaints about too little women in engineering, why aren’t there complaints about too few men in teaching or humanities?

There's no shortage of men in the humanities, nor in teaching once you get past the lower grade levels. In the US, at least.

The point of women in tech advocacy is that there are a variety of forces discouraging women into self-selecting themselves out of careers in technology. One is just the fact that there are so few women in tech to begin with. Another is that barely any can be considered high-profile. Then there are all the historical, cultural, and sociological factors.

This sort of advocacy is just an attempt to fight against those forces by establishing greater visibility and precedent for successful women in tech.

(As an aside, I think it'd be great if there were more female engineers in the dating pool.)