It's missing context, so yes, it's a problem. With the entire context, there IS a wage gap. But you just cut that part out for the little anecdote that suits your needs. Nice. A+ I bet your teachers loved you.

Okay, next time a woman you know complains their male coworker makes more, go ahead and tell her to work more, I bet she'll just love that. Especially if you word it juuuust like that. "Sell more time."