This question was posed to me by a construction worker when I was in high school. We were having an intelligent discusson when suddenly this guy Mulong asked what would happen if there are no poor people like him. Who would dig the sewage and who would operate the bulldozer to build new roads? If everyone is rich then there will be no laborers anymore. To be honest, I was thinking of that question ever since. And the answer came only recently when I realized that as people become rich then progress follows because of the funding of the research and development. What do you think will happen if we are all rich? Who will man the stores, who will do the dirty work?