His companies don't have great governance ratings because the board is stuffed with family members, friends and his divorce lawyer as General Counsel (that last one sounds like satire but isn't).
"...It wasn’t just Maron. Musk had a 15-year relationship with Ira Ehrenpreis, who chaired the committee that determined the CEO’s compensation. Antonio Gracias, another member of the compensation committee has a 20-year business relationship with Musk, and they’re such good friends that the two even go on vacation together..."
... Wait, really? That's absurd.