The problem with this issue is that it has been proven false based on the following.
Research shows that people with the same college degree in the same job type make about the same pay.
The flawed research used a much lower standard such as women with a BS vs men with a BS.
If the women’s BS was in mid-evil art in France , and the mans was in Business guess who makes more money?
If you want more pay, seek a profession that compensates you based on tangible results and productivity. Contribution to the bottom line and feeding new and unique products into a company's product line is completely gender blind.
Aren't we, in fact, expected to?