Greed is a response to insecurity and doubt. They don't want to fear the idea of a life where their exceeds needs aren't met by wealth, so they retain it. This

Greed is a response to insecurity and doubt. They don't want to fear the idea of a life where their exceeds needs aren't met by wealth, so they retain it. This isn't meant to be calling out the "bourgeoisie" to put at best, but there is an emotional response to uncertainty here.