Knowledge or intelligence can't ever hurt. The only things that can hurt a situation are when people have a lack of perspective, or a lack of self-awareness, or

Knowledge or intelligence can't ever hurt. The only things that can hurt a situation are when people have a lack of perspective, or a lack of self-awareness, or Dunning-Kruger type situations where they overestimate themselves, underestimate others, and are short on natural skepticism about their own cognitive processes. But this stuff happens with anyone, and maturity and professionalism overcomes it. But perhaps its more obvious or toxic with super knowledgeable and specialized people.