So you are saying the richest still have potential? I mean we can expect the average person around the world to be able to "yield" $500 for the richest person in this global era. That's like trillions for the worlds richest.
I don't speak for your comment's parent, but anytime I see these types of figures, it brings to mind Iain Banks' comment "Money is a sign of poverty" [1]. You'll see rants [2] against this sentiment, but I have yet to find a rant that doesn't essentially deify money. It's just a tool, and if it doesn't help us sufficiently move the needle towards greater human satisfaction (which I believe is very congruent with moving us towards post-scarcity factors), then it is upon us to find another, better tool.