I think this is the saddest part, at least for him. Before Twitter, a lot of people thought he was relatively intelligent to be a part of a groundbreaking electric car company, a crazy tunnel digging company, and wild space vehicle company doing innovative things. Now since Twitter, we see an insanely rich narcissistic meglomaniac that was kept out of most Tesla big decisions as he just wanted the publicity for himself, the tunnel digging company was nothing more than a way to interfere with green projects, SpaceX did the same thing as Tesla and succeeded despite Musk's involvement, and a once respected medium of open communication worth a reported $44 billion dollars devolve into a cess pool of bigotry and arbitrary restrictions. Whatever good will he built for himself over the years that saw him even get a cameo in a Marvel movie next to Tony Stark, he's burned through most of it in the eyes of a lot of people.
SpaceX and Tesla both grew with his continuous involvement. The managers were trained (out of necessity) to keep his "genius" in check without destroying the company or getting themselves fired. In a sense, Musk's continuous presence gave the companies a form of immunity.
When he infested the bird, the managers didn't know how to protect it. It was like bringing smallpox to the new world.