Depends on what they're selling. Elon is a bit awkward but has/had a cult following.

Edit: It's about communication but also hype/motivation. Be it for the team, shareholders or customers.

And communication can be done in many ways. It doesn't have to be political speak, sometimes the directness some smart awkward people bring can be good and being awkward gives them the right to be direct without coming off as rude professionally.