Don't ask me why I read this.

Big boomer energy on this one: millionaires work harder, make financial risks, are good with people etc.

Stanley seems to have a very narrow definition of luck, and his methodology is a little questionable:

Stanley: "So how'd you get rich?"
Millionaire: "Hard work, definitely. And taking financial risks."
Stanley: "What about luck?"
Millionaire: "Luck doesn't have anything to do with it! If I was lucky, I would've played the lottery!"
Stanley: "There you have it, readers. Millionaires don't play the lottery. A lot of other millionaires confirm this statement: it's not about luck."

Meanwhile, the question of privilege is never addressed, though it would've been an interesting question to explore.