I don't know. I've noticed many people reading articles, including Trump supports I met, think that a billionaire is necessarily more knowledgeable in business.

I don't know. I've noticed many people reading articles, including Trump supports I met, think that a billionaire is necessarily more knowledgeable in business... more areas than they made billions... in general. Additionally, many of them sincerely believed a billionaire saying he wanted to get rid of corrupt politicians and that he was honest. Maybe this is what author had in mind when reminding readers that billionaires are usually incredibly selfish people that, like all people, want to influence the world based on their own beliefs and preferences. People can forget sometimes that they're people, too. Very, aggressive people with money to make stuff happen.