Of course it's not a serious problem that a group of people are being paid less if you're in the group that's being paid more than them.

Maybe it's easier to understand the issue if you replace women with another group of people. Imagine if black people, jewish people or LGBT as a group were paid 90% of their counterparts. Does that make it easier to grasp why this is a serious problem.

Lets make it even easier. Would you still feel that it's not a serious problem if white men as a group were discriminated against, were getting less promotions and were paid less than their colleges.

Coding and programming is not a vacuum that exists outside of society.