We'll learn that market value by putting it to work maintaining our table top production tooling, maintaining our homes, vehicles, and schedules/social obligations, and etc. That's AI's peak utility, handling checklists and remembering details, repeating drudgery and unskilled labor. I await developers putting it to those mundane tasks instead of trying continually to one up each other with surprising results of weighting human arts, as LLM's and picture making does.
That is it's actual highest purpose.