But now that we've escaped the starvation etc, I'm suggesting it's time to change the paradigm again. Once we've crossed the river, we don't need the boat anymore.
1) A few billion people wouldn't agree with you suggestion that "we've escaped the starvation." They might not want the boat to be abandoned just yet.
2) Wealth is generated on a gradient, in perpetuity. It's not a "we have it" or "we don't have it" phenomenon. Thus the analogy to "crossing a river" is not appropriate. There is no finish line.
Sure. Paradigm shifts don't happen overnight, and they are often painful, but they happen of their own accord and for their own enlightened reasons. Just like when we broke free of feudalism.
Are you saying we've arrived at the 'end of history' with our current world view of property and wealth? World views have changed in the past, and I see no reason to think they won't continue to evolve.
My own view is that development both cyclic and progressive. Like a spiral.