Billionaires are surrounded by people whose job it is to make them right.

Even if they are wrong, those people will do what it takes to change the world (or the things surrounding the idea) to make it right.

This is one of the theories of action of the Saruman magic.

If you believe the world should be a certain way, and you are surrounded by enough people who believe you are right, the world will be changed to be more that way.