Go read the last paragraph of his essay. He's talking about becoming rich. He's not literally saying that billionaire is the only line that matches. Again, you're reading into this too literally. Do you genuinely think that PG would say that making less than a billion dollars is not successful? He's obviously using the "billion" yardstick as a rhetorical device.
In what way was she misrepresented? In what way is PG mocking her? I don't follow. She really does believe that you can't earn a billion dollars, and that there are no ethical billionaires. And that sentiment is echoed by many millions, most of whom I would wager know very little about the economics and mechanisms behind creating wealth.
