One thing I'd add: If we enter a world where the ability to build some product, movie, song, novel, whatever is so widespread and cheap that anyone can do it (and I do emphasize the word "if", because I think its debatable that this will ever happen at a level that is cost-accessible):
The strongest way businesses will be able to differentiate is Taste. Human-ness; novelty, Design, things that AI isn't actually all that good at. AI may generate an episode of Law and Order, but it probably couldn't generate, say, Oppenheimer; because nothing in the world knew that it wanted what Oppenheimer delivered. If everything else goes to zero, then that's all that remains.
The issue is: AI is tremendously bad at working with Humans who actually have taste. You generate an AI image with the subject on the left; you ask for a revision, same image, but move the subject to the right side of the image; it changes too much, or generates new images entirely rather than iterating. Its not-obvious that this will get better because it is somewhat antithetical to the way the AI works.
Put another way, english lacks precision. Its not the right language for this. And what seems inevitable to me is that we'll need something other than english to get the last 20% finished with anything AI is being used to deliver. That thing is, guess what, a human knowing python, knowing After Effects, knowing Photoshop, etc. An image generating AI will be popular; a .psd generating AI, with extremely precise layers left in-tact, would be worth billions.
In that sense, I think the current phase of AI is absolutely "people with no taste now being able to lean on the trained taste of everyone else", but you're right that they're totally blind to one IMO non-zero probability endgame: Taste + Skill + AI becomes a hyperweapon. Creation (AI), in the right direction (Taste), with the technical acumen to take the 80% output AI generates up to 100% delivery (Skill).
The unsolved problem is: How do we integrate AI into that workflow in a way that puts the Human, that puts Taste, first? Such that it isn't "AI does 80%, then passes it off to a human", but rather that the AI becomes more like Photoshop, or After Effects, or VSCode, involved in the process from Day 0, integral to it, back and forth. No one has solved this. No one is even remotely close.