I think his point was that it’s ok for a woman to not earn much without it impacting her attractiveness to men, while the reverse isn’t true. There is a reason why rich millionaire falling in love with poor woman is a romance novel trope while not so much the other way around.

Finances are part of the attraction in a male if looking for actual relationships. You ain’t not gonna impress a woman flipping burgers at McD while men don’t care what a woman’s job is if she’s pretty and fun to be around.