He is right but only partially. A lot of people are unhappy about the money they make. you can’t escape your environment where you see someone else doing better

He is right but only partially. A lot of people are unhappy about the money they make. you can’t escape your environment where you see someone else doing better than you in some small aspect or area of life but then is generalized to them doing better than you and hence the urge to have more money. Most of the time things start from there and then the unhappiness snowballs to other areas of life