That's interesting. Many say that the more material wealth one has, the less social and community life exists. I personally think that it's the american way that's the problem, not to sound america-bashing or anything. Why on earth do so many countries want to copy america? Why do so many countries see it as a gleaming beacon of civilisation to be blindly followed like a pied piper? It's nothing of the sort. I think that hollywood, pop music and to some extent the internet are polluting this world. Socio-cultural pollution. America's global empire can be likened to a big filthy chimney spewing out nitrogen oxides, soot, sulphur and god knows what else. It's all designed to homogenise this world in the interests of the corporate overlords. I think that people, especially the young ones are being 'converted', i.e. dumbed-down, spoiled, made to worship mammon, materialism etc. Globalisation is nothing more than a mechanism for which to facilitate corporate dominance, so that they can rise above the law. In a truly fair globalized society, trade unions and the law would be globalized.Watch China. As their incomes grow, so will their appetites for individual pleasures and luxuries. So, also, will their lack of empathy and compassion. It's already happening.
Having said that I wouldn't argue that a material quality of life makes people selfish. I would say it's the hyper-individualism that's fostered by free market capitalism that the main culprit. I think that paranoia generated by the media doesn't help people socially either. I wouldn't say that the materialism is also a symptom as well as a problem. If people feel that they don't need others, they're going to subconsciously try to fill the void. One thing that is interesting is that a lot of third world countries have much happier people in general than 'western' countries.
I personally don't believe that being materially well-off makes people selfish as such, though having excess is never healthy. I think that in western cultures, people live WAY beyond their needs. I personally think that the private car is a bit of an excess for instance and think that car clubs in lieu of private cars should be the norm. I think that excess reliance on technology has also played a part in this phenomenon as well.