Yes fiat money has its problems no doubt, but even Bitcoin which was created for something which is truly novel is manipulated through pumps and dumps. Gradually more and more control is going into the hands of a smaller group of people. No matter how altruistic one person might be in their endevours to solve the worlds problems, greed will always win in this world. It is the sad truth, humans are just designed that way. Our biological instinct is to always try and win (be alpha, or survive)