Go back and re-read what I just wrote about it being a spectrum. The situations where women do the most housework is both when they are not bringing in money to the household and when they are bringing in most or all of the money. It's not that it increases from all of the housework to some 100%+ scenario. It's that the correlation of men helping more as women are less economically dependent on them flies out the window at the far other end of the spectrum. Women do the most housework when they are earning both the least and the most, which doesn't make any sense, but that's the way it is.