JK Rowling sold hundreds of millions of books. Like every other author, she made a few dollars a book. It's completely fair that she is a billionaire. You can s

JK Rowling sold hundreds of millions of books. Like every other author, she made a few dollars a book. It's completely fair that she is a billionaire. You can say the same thing about CEOs. Jeff Bezos had a part of play in every Amazon package shipped. Virtually every phone in the world was inspired by the designs of Steve Jobs.