It’s good to have an entirely different brand of bullshit out there and a person demonstrating that a different type of brain can fit in any role.
Now the more confident-sounding and charismatic someone is, the less I believe there will be anything interesting I can learn from them, and the less I trust them!
Probably a good metric anyway; if someone puts all their points into charisma, they have opportunity costs in other dimensions (excluding any "natural" charisma that some people may arbitrarily have, to the degree that's actually a thing or not).