the problem with this argument is that it's rooted somehow in the feminist movement. somehow, BJK convinced everyone that women being paid less in tennis is because the world is sexist. that's simply not how i look at it.
tennis is a business, at least with respect to prize money. the equation should be simple, the more money you bring in, the more you get paid. if you play in the finals you're not only being rewarded for being badass, you're being rewarded because you provided 7 rounds of entertainment, and got the largest number of viewers/audience to watch, erego bringing in the most money.
why don't tennis players whine to the nba or nfl or soccer(football) about equal pay? federer was just as dominant a no. 1 (if not more) than tiger woods, why didnt' he whine to nike to get more pay? simple, because it's not about fairness. the amount of money you get paid is proportional to how productive you are. tiger brings in more money to nike (for instance) than roger does, erego he gets paid boatloads more
i wish people to get rid of this idea of sexism. now, i'm not a huge capitalist, but for a sport like this, this is a market, let the market decide! if the women can pull in as much money for a tournament as the men (and yes this can be quantified, ratings, ticket sales for women headlined days, etc.) they should get as much money. if they can pull in more money, even if they play fewer sets, even if they play 1 set, hell, even if they play 1 game they should get more money!
this isn't about sexism, it's about capitalism, simple as that