In 1977, I left teaching and began a career in corporate sales. At that point, I began to work alongside men. This has exposed me to not only the organizations for which I worked, but also to hundreds of others. I have seen the same kinds of patterns everywhere. The women's movement has affected only part of the female workforce.
Simple awareness is a giant step.
If you want a good opportunity, see how many men are in the position compared to women. When you think about it, this is what men do. If you want to earn more, do the jobs that pay more. This is much faster than trying to single-handedly change the way business operates. Women tend to feel guilty about anything and everything.