I hear you on the big business - and it's a possibility we can't rule out. They long since went that way with copywriters (the previous field of my business, which was harmed by the advent of ChatGPT).
BUT... I have a theory (and a mission to help make sure I'm right, lol). AI is tricky for big businesses, particularly in the game space. Since you can't copyright most AI art*, it makes using those assets tricky for a big company in a commercial release. Can you imagine a world where Geralt is a public domain character because he was AI art generated? You can see the problem.
* = You can copyright some AI art if you put a bunch of post-work into it. It's a case by case basis. Buuuut... I think that's crap. I think you shouldn't be able to because once an AI creates it, that piece of art is the product of humanity writ large, not you. Even if you do a lot of work on the image. I'm hoping to put my money where my mouth is and I've promised not to try and copyright any assets I create, even the ones that I did more work than the AI. I just don't think it's ethical to try.
AND - I think that's also the legislative solution in the long run. I think we need to push for laws that clarify that no matter how much effort you put into something, if it started life as an AI prompt it isn't yours. I'd love a future where you can use AI for anything you want... you just can't OWN what it creates. Therefore, if you want to use it in some meaningful way, you're going to have to bring your own creativity and talent, something you CAN own, to profit off of it. (I make a joke about this in the credits of "Blew It!". You should be able to see it in the free demo so you don't have to buy the full version if you wanna' see the snark for yourself, hehe).