And to me, it matters not one jot. Male models should be paid less because they generate less income via clothing and magazine sales.
It's not discrimination. It's the result of demand. Making a person's wages a function only of the supply side is the sound of a one-handed audience clapping.
Socialists concern themselves with wage equality. The only thing that concerns me is gross inequality. But to address that issue, I support the idea of progressive taxation. Wealthy people need to contribute more.
In most circumstances, it's not sensible that courts set people's pay.