I don't think "fair" is a good word here. I'm happy to work from the basic principle that I want to society to be set up to make people's lives better, and I don't care about AIs, and I really don't care about AIs designed by multi-billion dollar companies.

Unfortunately, I think this isn't a battle that can be won, as those multi-billion dollar companies can just buy laws that say they can slurp up everyone's information and train on it (such laws are currently being introduced in several countries).