Where did I say that the bulk of human society is middle to upper class? If you are poor enough that you can't eat meat, use airplanes, or use amazon to get junk shipped across the world you obviously don't contribute to over consumerism. The fact remains however that some hundred million to billion people are wealthy enough to contribute to over consumerism and they do. Without these people's spending habits these companies wouldn't be able to grow so much. Our consumption habits are the sugar that feeds the cancer. Stop feeding the cancer.