I suppose that money does bring a lot of problems along with it. However, in human history there has never been a better means to trade or provide almost universally desired fiat. Since there has never been a nation state collective government that has survived over the long haul or a massive project on a national scale completed without either money or an authoritarian government forcing it, I think we'll just have to live with it for now until someone figures out a way to make the world collectively completely altruistic.