I'd argue that, yes, men's soccer is generally more watched, but that a significant reason for that is because men's games are more /available/. I'd watch the hell out of women's games if they were more readily accessible, but they don't get nearly as much air time or advertising. And there's some fairly strong evidence (see world cup viewership numbers) that others would also watch more if it was more available, at least in the US. So a ratio of revenue:pay isn't a great way to measure "fairness", either, as it can be heavily influenced by biases in the overseeing body regarding how many revenue-earning opportunities the team even gets.
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There's a big Catch-22 for the women's team, where they're not given air time and visibility because they're 'not attracting viewers', but it's far more difficult to grow your base without that air time and visibility. And even when they ARE given the chance and then CRUSH the ratings, people still respond with "no one wants to watch women's games".