MacKenzie Scott? Jensen Huang? Bernard Arnault? The Walton siblings?

Even ol' BG - he may be a billionaire but I think he's in general a very reasonable, liberal, secular, and fairly moderate guy. I guess he believed Windows Metro was a good idea... :)

Obviously we hear the stories about Musk, Zuck, Ellison etc. but I think there are plenty of grounded billionaires out there.