If you only study millionaires and not the rest of society you have no control. You can't say humility makes people millionaires without looking at all the peop

If you only study millionaires and not the rest of society you have no control. You can't say humility makes people millionaires without looking at all the people with humility who aren't millionaires. This guy hung out with millionaires and is pretending their virtuous traits are somehow unique or somehow the reason they're millionaires. That's the definition of survivorship bias.