I disagree with that though. What people choose to do with their money is everyone's concern. It makes a difference whether someone goes to Home Depot for some fumy gas-powered leaf blower or rakes their leaves by hand and plows the unspent money into their child's college fund. Economic decisions made by individuals have social consequences that affect everyone. The unregulated pursuit of personal utility (which, as behaviorial economics has proved, is rarely done efficiently) will kill off the species. I find that Smuggler is making a circular argument about the need for personal jets. Naturally, if the rich are the only people with money for consumption, the only things that will be produced will be consumables for the rich. But there's no particular reason that we need to configure society that way.