I mean the reasoning is more something like: to become a member of the board at OpenAI you must be extra-ordinary at something. At first sight, the only candida

I mean the reasoning is more something like: to become a member of the board at OpenAI you must be extra-ordinary at something. At first sight, the only candidates for this something are: "start-up founder" and "spouse of famous person". The famous spouse thing is so much more extra-ordinary than being a startup founder, that the first "explains away" the latter. Even when being related to an actor makes it more probable to be selected for such a job, there may be other hidden factors at play.