If polygamy was allowed for women

a) With so many men working, she can easily afford maids.

b) If all husbands know their responsibilities, and maids are there to take care of the stuff she can’t do, then we won’t have any problems.

What can happen is that the woman has the control to run the household smoothly, including the money that is coming in. Imagine a grandmother. They usually have the control of the household and finances.