Even your article admits the biggest factor, and the most important one. Men choose careers that end up paying more on average. It seems they still try give the impression that women doing the same _exact_ position as a man gets paid less in every case. I can believe there is a disparity, especially in certain fields where the general public's perception of skill reflects your perceived worth (like physicians, maybe law). Some people get paid more just because they're taller, and that isn't the company being heightist.