"Many of the Utopian constructions are worthless because they follow the lead of the theorists in assuming that we have perfect knowledge." I think this is what, in essence, a lot of people get hung up on. It seems to be the idea of many, especially in politics, that if we do this or that then all of our problems will be solved. While that would be cool I don't think that is in the realm of possibility of happening. Indeed, many matters of the theoretical, while interesting, bear almost no weight in everyday "real" life. What we can do as far as economic/social systems are concerned is choose the option that is the lesser of two evils so to speak. No system will be without its corruption yet we are responsible for choosing the system that is will encourage the most amount growth and yield the least amount of unpleasantness possible and to the best of our knowledge.