I suspect that some sort of biologically driven urge to dominate the gene pool will keep humanity from ever reaching any form of utopia. As long as we are programmed to compete with each other, this will always reflect in the way society is organized. To me it seems that all of these utopian scenarios have in common that people allow others to be successful, expecting the same in return. This only works if everyone behaves this way and seems easy to abuse by people taking advantage of others. In other words, we don't need to worry about retaining unhappy feelings at work, others will make sure that you will remain unhappy at work. Or you will become someone that makes others unhappy at work. It may work on a small scale, here and there, but in general on a global scale I believe we are doomed to live in an endless cycle of evolutionary driven struggle of some sort. I do hope I am wrong, but in any case we are a long way from reaching it, socially, not so much technically. Which makes me a bit sad at times.