That is indeed true, and I thought about putting in a note about that in my original comment, but... c'mon folks, I don't think there can be any serious doubt about the idea that some people are born stupid, and that stupid people are more likely to be poor. Can there? Is this a concept which people genuinely doubt?
Likewise, some people are born ugly, and ugly people are more likely to be poor, and why didn't TFA mention all the research on this?
Contra-point: the rich have more resources to invest in beauty.
Contra-point: but surely there are some beautiful poor people, denied the opportunity to maintain, develop and leverage their beauty for material gain. What of them, the deserving poor?
Contra-point: it's not just good genes, it takes hard work too, with proper diet, exercise, plenty of sleep and good grooming. I deserve my success, I earned it.
Contra-point: do beautiful parents necessarily have beautiful children, and vice-versa? I know this girl, she's really hot, but her sister is such a dog....