When I add the "globalization" situation (marginal wages for poor people in poorest countries, that oftentimes even are at the limit of starving in these countries, for the production of our goods), than it is not even seldom today, that this system draws its profits from poorest peoples.
It is said, that Henry Ford understood that for him to succeed, he also must help others to succeed. He and other big entrepreneurs laid the foundation for today's wealth of the western nations. Currently the system seems to have changed, by teaching people how to let others fail for the own success.
I don't think, that the current system is sustainable. Even Warren Buffet said that his class is winning, but it should not.
I think, in the long run, we will all loose this way.