The best thing you can do for your team, in the context of having a brilliant jerk, is to simply and openly refuse to tolerate bad behavior. This may be one of the few instances where “praise in public, criticize in private” is upended. When a person is behaving badly in a way that is having a visible impact on the team, and a way you don’t want your culture to mimic, you need to say something in the moment to make the standard clear.
