Why did you sign off your copyright to ACM then? If you kept the copyright and prevented others from distributing your work, you could be the sole distributor and negotiate the price with the AI company yourself.
Ok, then next question is why are you in academia? To share knowledge with humanity, bring the Promethean light to the mortals or something I guess. But then if they use it for productive things that make money, that's too smelly, that's too practical, too dirty, or what?
It's a racket.