Just because the industry is unequal in terms of gender doesn't mean it's unfair. Point me to a case were Women were purposefully excluded in a press conference or job promotion. You can't honestly expect the industry to be 50/50 in terms of equal gender representation. It's just nonsensical. Life is unequal, but that doesn't mean that Women don't have the same privileges as Men (well, at least in the First world). If anything, Women were hired in the past exclusively because of their gender to promote these video games. They were called booth babes, but with how much the industry has grown today they have been rid of.
Women, if you want to see more Female heads in the industry do . Learn C++, go to school, start modding, anything that might help you in your way up because all this talk won't get you anywhere.