I simply do not understand why she chooses to adopt this theme -- hate the rich -- when she sets herself up?
DUmmy kpete is an unemployable dilettante, much like Catbox Mike's Monica.
She spends her time on her useless "art".
Since she has no marketable skill outside the boudoir, she depends on an allowance from her husband.
Maybe, since he's almost certainly an evil repuke, he requires that allowance to be performance-based.
Kathleen has aged well beyond her prime, well into advanced cougarhood, so there are no more increases or performance bonuses to be had.
Her hatred for the rich is directed at Mister Peterson