Individual people claiming to have a superior Big Picture for humanity is basically what big politicians are. We assign them, then give them 3-4 years to remake the world in their vision.

And once we have a few dozen of them in a room together, it's the recipe for endless passionate arguments about exactly what Truth is, and what Value is, and what Goodness is, about anything and everything.

One of the biggest challenges is that rules are set by experience, but every new rule is also the start of a new story we've never read (called 'The Future'). And humanity changes pretty fast!