In modern society it is thought that every person is primarily defined by the number on their bank account. In turn this leads to an unhealthy behavioural pattern called greed.
To be really rich means to have social prestige which doesn't necessarily demand the material status of a millionaire as a prerequisite. If you have enough prestige you'll receive goods and services for free.
I encourage you to read "The Moonmoth" by Jack Vance.