Aren't there laws that prevent discrimination on gender and race pretty much in every first-world country? That would make it illegal to pay a woman less for the same job.
If you consider jobs where the title is the same but the professional works B2B, maybe women are less likely to ask for a better pay? That's why pink razors cost more, after all.
Female soccer players make less money because less people watch and there is less money, same thing for BBC journalists who demanded the same pay even though they got 10% share compared to their male colleague.
There are so many variables...
I think this is a great example! The US women's soccer team is better than the men's but they make a fraction of the money. It's not their fault that sports have a sexist history that influences viewership, ad revenue, and ultimately their salaries.
We have some women teams here in Spain, and while there's some movement in the league honestly it feels... like watching amateurish football. I guess they need time to catch on, but meanwhile it's not very appealing.
Also, over in Tennessee, the UT women's basketball team has been much, much more popular for decades now than the men's team ever was.