Kissinger is widely and wildly despised. East Timor, Cambodia and extending the Vietnam war by years is his bullshit legacy. If someone can reincarnated before they die, then Kissinger => Condoleeza
Yes - this is my point. He is despised, but still is knowledgable, and I'd listen to him about China.
Granted this is about tapping specific knowledge. I would never hire someone with a morality deficit as an employee. (And maybe it would be dangerous to have one as the CEO's boss)
I have thought about this, and given his amoral behavior and deeply rooted ulterior motives I could not trust a single thing he said, or even how he said it.
There are plenty of experts on subject matter that are not equivalently tainted.