That's one way to look at it.
However look what she does for him and his family.
She might be taking more of the money but shes also spending money on him.
So its not all a net gain.
Gave them a place to live rent free , she however is likely paying electric bills and water.
Did you count the bodies in that house?
I know what its like for a family of 4.
It isn't going to be cheap. specially since more and more keep staying over.
Shes not making out like a bandit.
Pay close attention to the things she does for the M.C.
Its best she gets the money