I think you are (rightly) pointing out that "quantity has its own quality".

As an analogy, this is similar to https://en.wikipedia.org/wiki/Chandrasekhar_limit.

To GP: It's less "no one should have any mass". It's more "Billionaires are like Black Holes, and therefore should be avoided" -- yes, it is a value judgement; no, it's not a blanket statement about money.