Getting more women into tech* isn't just about the money...
1.) Not encouraged in early years: If you are a tech-savvy female, "soft" tech careers (Graphic Design etc.) are generally recommended as career paths.
2.) It's a Boy's Club: If you make it past the college classes (with a 20:1 M-to-F ratio), you enter the workforce with (mostly) the same ratio. This means that unless you have thick skin & a good sense of humor, you'll never make it.
3.) You're Wrong: Even if you are right. And no one will hesitate to tell you why.
* Speaking for a professional career in Tech.
In my experience, a lot of these actually provoke you to strive to over-achieve & prove yourself. But I can see how it can seem off-putting for a new-comer.
I'm surprised this is still an issue. The guys here can't seem to trip over each other quickly enough to white knight imaginary women from any possible sexism. Is there a tech crowd that isn't obsessed over this topic and is making us all endure having to hear that Leisure Suit Larry is sexist and why? Speaking as a guy who managed guys and gals alike (in tech) and never treated them like children.
#2 would apply just as readily to female-dominated positions like nursing. A man who cannot handle a competitive, female-dominated field like nursing will get his ass handed to him as badly or worse. Men tend to be able to tolerate women who cannot get along in a male-dominated environment. That is not even remotely true in reverse.