Stopping the world's resources from being controlled and directed by a tiny fraction of its population isn't the plot of Harrison Bergeron

Solving inequality starts with everyone gets the same upbringing. Imagine designing a boarding school where kids get placed at an early age, and get all the support that they need to basically learn how to have control of the environment around them, while also how to interact with other humans to act as a force multiplier in accomplishing bigger things).

You could do this right now with a lot less money then it seems, the problem is that you have to break ethical grounds - for example, you have to have police or support staff that forcibly take kids from their homes if the parents resist this sort of education for their kids. If you don't do this, then you essentially are back to square one.