If you have to explain your conspiracy theory with "the majority of these people suffers from the same special kind of neuroticism", I suggest you get back to your whiteboard.
Or you can keep living in a Disney reality where uncle Scrooges are the norm and not the exception.
I think you might be misunderstanding op's comment. "Because the amoral drive for extreme wealth doesn't stop at a certain level of wealth" is a statement that I read on its face. One does not need to reach for "conspiracy" as a way to explain the behavior of people faced with an opportunity to acquire more money: just look at the 5-6 posts making the same point in this very sub-thread. Did you miss those or did you mean to post this reply somewhere else? Money is a huge motivator for many people.
Nothing misunderstood here. Only someone seriously naïve or disingenuous would arrive at the conclusion that money is the main drive of such people who have already so much that they don't know what to do with it. Especially without proofs, as a "this can only be it!" position.
I'd rather believe wanting power for power's sake than this cartoon idea of an old duck diving into a pool of well-polished coins.
Truth is that beyond a few truly neurotic exceptions, the obscenely rich do use their money. Just not all in supercars and yachts, but also to influence what they can.
Or you can keep living in a Disney reality where uncle Scrooges are the norm and not the exception.