People with a lower IQ do menial jobs because it is all they can do, people with a higher IQ might do a menial job because that's what they want to do. Not ever

People with a lower IQ do menial jobs because it is all they can do, people with a higher IQ might do a menial job because that's what they want to do. Not everyone is motivated by wealth. In fact, the highest IQ's tend to belong to people who do not play well with others. Maybe leaning on a broom is just the ticket needed to happiness.