I know of a couple where he works 50-60 hours/week, she works 15, he brings in 10x her income, she has a housekeeper and all day daycare for the kids. But when it comes time to take out the trash or clean the gutters - she says that's mans work and in particular his work.
Even if he left her he'd be paying so much in child support that she'd be as well off as she is now but he'd never get to see the kids.