I think that the approach that Anthropic is taking to governance is a little different than "all for myself", it's worth having a read of https://www.anthropic.com/news/the-long-term-benefit-trust

It sounds like they are least trying to build on the notion of being a public benefit corporation, and create a business that won't devolve into chart must go up and to the right each quarter.

Time will tell of course, OpenAI was putatively started with good, non-profit intentions.