She's saying men have a tendency toward being selfish with money.

If a wife asks for a rug cleaner, for example, so she doesn't have to haul a 200 lb rug out of the house after moving all the living room furniture to get get it out of the house, throw it over a line, and beat it for hours on end to clean it but he wanted to go to a sporting event with his buddies then that money is going towars the apirting event rather than something that will make his wife's life easier.

She's there to make his life easier and more comfortable, after all; not the other way around. Oh, and to give him sons.