No, this is the definition:
Pay or compensation discrimination occurs when employees performing similar work do not receive similar pay. Pay discrimination also occurs when a difference in pay has an unlawful basis such as race or sex.
So by that definition, similar work should be similar pay. As for the second sentence:
I don't know any wrestling company, that the women's division makes the same as the men's. Not saying that's right... but it's kind of like the WNBA players, wanting to be paid like the NBA players, but no one goes to their games.