As long as he is not living paycheck to paycheck, I kind of agree with him. Dr. Jordan Peterson actually says something very similar to this, in that once you make a certain amount of money per year, increasing your income will not result in improved quality of life because the amount of work you must put in after that is so much you will not have hardly any free time. He suggests that people only work that many hours if they actually enjoy the work, rather than because they want more money.