First: most boards are accountable to something other than themselves. For the exact reason that it pre-empts that type of nonsense.
Second: the anti-Sam Altman argument seems to be "let's shut the company down, because that will stop AGI from being invented". Which is blatant nonsense; nothing they do will stop anyone else. (with the minimal exception that the drama they have incepted might make this holiday week a complete loss for productivity).
Third: in general, "publishing scholarly articles claiming the company is bad" is a good reason to remove someone from the board of a company. Some vague (and the fact that nobody will own up to anything publicly proves it is vague) ideological battle isn't a good enough rationale for the exception to a rule that suggests that her leaving the board soon would be a good idea.