>mainly applies to all basic needs being taken care of, but there will likely be some exotic desires that still have some monetary or cultural limits placed in it.

In an ai manufactured post scarcity it's quite likely that more or less every desire will be taken care of. Cultural limits, quite possibly, but those can't be fixed with any kind of money when the person you're selling to has no desires.

>The rich and powerful are heterogenous (like the rest of us) in their motivations so all it takes is one soul to break the mold and “tradition” and give accessible access to the tech.

The thing is that in a rate of progress so fast, chances are that a remarkably select few may be in charge while the rest are simply unable to cope with the change. There will essentially be no new niche to conquer in terms of business. Once we hit basic post scarcity more extensive post scarcity won't really be far behind, and then power will be the only possible commodity, lying with those who may decide to abuse it or exclude others from it(it is quite reasonable to think that the rich class does include an abnormally high number of empathy lacking people in general).