Although I do believe Anthropic knew this and this kind of involvement is still beneficial to them, as it still slows down competition, which is their sole objective when you brush off marketing sprinkles from their statements.
In the meantime, there are a lot of classic morality tales in which deals with the Devil don't work out quite the way the protagonists hoped they would. These stories go back thousands of years, spanning a wide range of creeds, faiths, and cultures. You (and Dario) have some offline reading to do.