Just like in the name decentralized means it doesn't have a central government body that controls the money and forces the participants to deal with the issues at hand without putting the responsibility in someones hands. I am not saying that is better but it is certainly different.

For example, in the normal fiat world we live in right now the rich people get richer and poor people get poorer, if we do not print more money to give them both what will happen? Poor will eventually have nothing and the rich will have everything and poor will riot or die. That is why they print money and make the economy go forever. In crypto decentralized ways rich are forced to share with the poor otherwise there is no more bitcoins and the poor will pay premium to get it and that will result with bad situation for whales.