If you only look at the set of people who work in white collar jobs, I would wager those who previously had blue-collar jobs exhibit some positive characteristi

If you only look at the set of people who work in white collar jobs, I would wager those who previously had blue-collar jobs exhibit some positive characteristics. I don't think that the set of all people who have had or currently have a blue-collar job is particularly relevant to the argument, other than as a backdrop for speculation.