Just a thought. Of course its decentralised by an order of magnitude compared to fiat or other alternatives, but what about the process/team that decided the 21 million coin limit for example? How are such rules changed by the way? Is it the same dev team that pushes changes to the Core release that decides these things?
The total of the coins was decided on the code of the coin, just like the number of zeros after the point. And that's something you can't change in the future because it was made that way.
We see some changes in the road, but those changes are to make it more secure or more efficient, not to change the basic rules. When people change the basic rules then we have a fork, and a good example of that is bitcoin cash. But at the end, those decisions are taken by a group and not by an individual.