It seems unlikely to me that Anthropic employees really care about X-risk (to a degree that the CEO feels it necessary to make public statements that he otherwise would not). I'm sure the pay is great and the problems are interesting -- lots of smart people work on much more evil things than LLMs
I mean, they're still building the tools that can, are, and will allow people to do enormous amounts of damage. Right now there are safeguards. But like Oppenheimer and the Atom Bomb, most people will only put blame on the person who makes the final call for using said tools to do harm.