Have you ever spoken to someone who works at SpaceX? I have multiple friends in the industry, who have taken a trip through the company.
The overwhelming consensus is that - in meetings, you nod along and tell Elon "great idea". Immediately after you get back to real engineering and design things such that they make sense.
The folks working there are under no delusion that he has any business being involved in rocket science, it's fascinating that the general public doesn't see it that way.
When you boil it down though, sometimes more than one company is built using almost the same exact mold, and the only major difference between them is the idea that the business plan is bult around.
More profitable ideas are good to have.
High-functioning or not.