Who can tell? Musk has gone full Kanye at this point. He still has intelligence, but years of people telling him he's the most talented person on the earth have led to a downward spiral of egomania and lack of self awareness. I don't think anyone can guess his motivations at this point.
Musk made his goals for SpaceX well known from the beginning, has for decades maintained that was his goals and his actions with SpaceX are all consistent with those goals.
