So then the question is: how much weight do these votes actually carry because if the votes are by people who in turn don't have much support themselves (both within, employees, other board members and without, shareholders in the for-profit, donors and founders, then they can fire the CEO but they may not be able to make it stick if it isn't for an extremely good reason.
I haven't seen that reason yet, though I don't rule out one exists and even then you'd have to do this in a way that it doesn't ruffle the feathers of your ultimate paymasters. Being a board members of a large company is an exercise in diplomacy, not in bull-in-a-china-store level incompetence.