Yes, I don’t really get why this is such a bad thing to say? If smarter people tend to earn more money on average then it only stands to reason that the rich will have higher than average IQ’s. That doesn’t mean that people from working class families are stupid or bad, and it doesn’t mean rich people are always smart, it just means that a job as a doctor pays more than a job as a plumber so people who become doctors are more likely to end up wealthy and people who become plumbers are more likely to end up working class. That seems like a normal and healthy situation to me.
Lawyer get handed a bill for $500 from his plumber for a 3-minute repair. Lawyer says “This is ridiculous, I don’t even get that much as a lawyer.” Plumber says “neither did I; that’s why I became a plumber.”
A lot of kneejerk liberals around, exacerbated by the Brit habit of saying ‘working class’, rather than ‘poor’.