When thinking about the labor it must take to keep these homes clean (and you know the owners ain't schlepping a mop), I always recall Barbara Ehrenreich's book Nickel and Dimed (2001):
When someone works for less pay than she can live on … she has made a great sacrifice for you … The "working poor" … are in fact the major philanthropists of our society. They neglect their own children so that the children of others will be cared for; they live in substandard housing so that other homes will be shiny and perfect; they endure privation so that inflation will be low and stock prices high. To be a member of the working poor is to be an anonymous donor, a nameless benefactor, to everyone.
— Nickel and Dimed, p. 221
The author concludes that someday, low-wage workers will rise up and demand to be treated fairly, and when that day comes everyone will be better off.