Personal wealth and a better humanity, without costing money can only be achieved in Star Trek. Technically, if you could build a society who would do a job because they WANT to do it (passion for the job), rather than they NEED to do it (for money), money could become obsolete. I mean, if somebody told me, "Here, take this spaceship and explore the galaxy" I wouldn't even want the money from them. I would do it straight away.We could learn to work towards the betterment of humanity at the cost of personal wealth. But, you know, no one actually wants to do that.