Who would buy 500 people for 90B without tech, dataset, company culture they are pretty much your another excellent ML guys or team.
They can make great things for sure but not more than your organisation will allow them
Im pretty sure this big corporations aren't as fast moving and "we dont care about law/copyright" as ML startups, and people working in Meta/Google are as good as your typical OpenAI guy just with massive corporation on their back and this wont change.