Call me cynical (and you’d be right), but I think that humans as a species have a couple of basic tenancies. We want life to be better and want to do less to make it so. In other words, we want more comfort and convenience at less cost. That is why we live in a consumer based society with disposable products. We also focus almost entirely on short term gain vs. long term gain. There are obviously exceptions to these rules – like our friends the Mennonites – but in general I think this holds true.