I think it's very useful for men to know that even in happy relationships, women feel they do most of the labor and research looking at the "work" each person does proves that time and time again.
Sure social obligation goes both ways, but we started this by talking about het poly married guys and why people don't want to date them.
If men just understood that they cannot stay at their girlfriends (or anyones) regularly and not clean up after themselves, if they just understood that it is their responsibility, and they bowed to the social obligation, then it wouldn't be a thing. But they don't. Instead they try and dispute the reality and gain from their position of power.
And no it's not all men, certainly, but the ones who have done that bit of brainwork stand out immediately from those who have not.
I know that any man I've dated that is generally aware of how gendered social dynamics play out has been a superior partner to those who deny the concept of privilege and power. Men who reject it outright? Usually been somewhere between offensive and dangerous.