How do you know how good things "could be"? Just because you can imagine something doesn't mean it's possible
That is blatantly wrong. Better is always possible and the people who steal and cheat the system are the ones who deny that better world for us all.
The Hitlers, the Putins, the Kochs and Epsteins and Madoffs of the world have made the world far worse than it needs to be for the absolutely worst personal reasons.
It's not necessary to know how good things could be. Part of the meaning of life is to work towards a good you think could be, and the modern oligarchy strips us of that right.