I mean the spiraling situation when a tiny percentage of the world population controls the majority of wealth.
You talk like it's some new fantastic travesty but, really, that's the way it's been for ages. Under every previous economic system in the past that I can tick off on my fingers, under every previous political ystem I can tick off under my fingers. The only exceptions are historical footnotes who assimilated, historical footnotes who were made extinct, or those found ways to coexist but only because of their irrelevance to the juggernaut of modernity. Even Rome dabbled in this extravagance and they're considered something of a benchmark civilization for some.
Despite reforms and revolutions, attempts at honest change and self-deception, cruel benevolence and magnanimous tyranny, extreme wealth has always been the tools of the relatively few, whether as a numerable substance or as a motivational idea.