If you could get Henry Kissinger on your board and don't have moral issues with him, why wouldn't you? I absolutely understand where you are coming from, but in that respect Kissinger is definitively an exception, because while he may not have the medical credentials, he has tremendous value just because he is someone who is so well known that he can be a door-opener "anywhere".

He's also run a consulting company that's specialising in identifying partners and acting as door-opener for the last 34 years.

In other words: He's not on that board for his expertise in their field, but for his expertise and contacts related to getting in to talk to the right people.