While it's nice to think of a FLOSS utopia, unfortunately human behaviour will never allow it to happen.
But the silver lining is that we are creating a collective conciousness through tools like the internet. Humans can naturally create this collective sentient being when forming a tribe for instance. Our problem, in our particular point of history of civilization, was always the problem of scale.
Now with the internet we are again able to form this collective mind in a bigger scale. We are still in the infancy of this process, and thats why this collective is acting as a dumb giant. But I think that as we evolve in this process, this collective mind will get more sophisticated. And soon we will be able to collectivelly control whats best for the greater good, trying to repel all hostile movements that could try to control the resources to the benefit of a few.
The problem is: it will take a lot of fight to get there, some of us will fall, but i believe that some of us will get there first.
It's a problem that ethereum.org is working on. They have an mvp, but not yet ready to scale.
But one can argue that the internet has enabled some of that utopia. And the printing press from the point of view of those who weren't allowed to read. Yes the Church didn't want people to learn how to read, but humans have prevailed. Hopefully we can solve current problems before the Doomsday clock reaches midnight.
Whenever some human has amassed more power over others, and a group feels ill, the robots solve the problem.
All such a robot would have to do is apply current laws, facebook is too big, google is too powerful, banks are bankrypt, robot just swings the hammer the elected politicians failed to do.