Why would women want to be equal with men ? I think that's arguing against god's creation, which made them different.
If women would stop paying those outrageous prices for haircuts, I bet the beauty shop would lower their prices immediately. Typically, they're staffed by women who are doing the high price charging. In those instances, they make more money than men who cut men's hair, so it could be argued that the men who cut mens hair aren't getting the same money for the same work ! There is also the option of going to a male barber shop and having them give you the $ 20 cut.
I know quite a few women, who make a ton of money for doing less than I do. No system is capable of ever holding back a woman who really wants something.