yes thats true, in steem we have the possibility to vote in an decentralized way if we want to make a hardfork and if so what we want to change. The great thing is, thats all open source, so you have the choice to take part or not and copy it. In the future we don't need a world government and a world currency. We need a diversity of networking platforms and currencies. Every mono-culture is not resilient and therefore instable.