If he thought he could make more money by pushing fossil fuels

I beg to differ. Like I said he ain't all bad.
His brother Kimbal, and erstwhile busness partner, is something of an entrepreneur also with an environmental edge to him. And there's a business minded sister. And a entrepreneurial eco-cousin.

Just be thankful - being born in SA - he can't be president! Mind you, would that stop him trying? Look out Canada!