I tried to address this in the latter part of my post.
I'll start by saying there is a lot of nuance here with cases where I might even agree with you but I'm going set aside nuance in service of getting to the core of my point.
The guy who pushes around a trolley, unpacks a box of goods and puts it in the shelfs of a local branch of a nation wide grocery chain is not just worth 30x less than the CEO of that multi billion dollar grocery chain.
The key distinction here is that the difference isn't just linear, its non linear with a steep gradient. You can replace that guy with a 12 year old disabled girl and it would make almost no different to outcome for the multi billion dollar grocery chain.
Whereas if you hired a slightly less competent/experienced CEO and I mean like 0.5% less, the difference is tens or even hundreds of millions.
The non linear nature to this is not just something to do with humans, its a natural phenomenon. Its the Pareto principle & distribution.
Maybe things can be in the realm of 20-30x when we are talking about CEO vs the rest of the C-suite.
P.S. Just to directly address your civilised society claim: There is nothing civilised about the proletariat or their puppeteers dictating by fiat how far high a person can fly before their wings get chopped off. Btw in such a society, those who chose are an order of magnitude more powerful than the most richest and powerful in our current society. You just replaced one set of elites who "atleast" "somewhat" earned their station with another set of elites whos only skill is in being a good orator.