A use case isn't needed anymore.
It's what THEY want. And THEY want fewer workers. (But more consumers, go figure).

Even your idea of shuffling around the photos on your phone is horrific to me.
Admittedly, there is no world in which I can see AI being good for anything.

Inevitable to me is less about an unstoppable evolution, but what the tech bros WANT to be, and the potential for balance sheet improvements

Do you know about Robodebt in OZ?