There's a big skills gap between men's and women's basketball. The stakes and interest is so much higher, the history so much stronger, and the money so much better. The pool of people willing and then able to dedicate themselves to such an extent to becoming a professional athlete isn't comparable. In the case of women, we often need some reminding that they can even have careers! (England soccer's twitter channel had a post to the effect of "Today, the Lionesses go back to being mothers, partners, and daughters, but they were also heroes." They're also professional soccer players!)
Similarly, US men's soccer lags behind the women's team in relative skill. Male athletes in the U.S. have basketball, football, baseball, hockey,... to aspire to. The U.S. invests heavily in women's soccer compared to other countries (we are definitely relatively progressive) -- and the fact that we have so many good players today, we probably owe to the burgeoning success of past USWNT performances in the 1990s. Mia Hamm was a huge sports figure and the hero of a generation. And besides, what else is a girl who wants to be a sports star in the U.S. going to do?
I certainly think men will always find men's sports more interesting. And people will always find the "bigger" events -- the ones with better production value and more fellow people following -- more interesting. The women's world cup should hopefully be a champion for the cause.
I guess to me it's less about pay than opportunity. Indirectly, more opportunity will lead to better pay on its own. So bodies such as FIFA would have the subsidize women's sports more using their earnings from the men's sports. But they can afford it, and it's necessary in order to get anywhere with opportunity. Without that effort, sports remains for the most part a man's thing, a reality that continues to feed itself over time.