What Whizzard was saying is that it's always wise to live within your means. Of course no doubt he's earning a LOT also lah. But maybe if he copies his friends, despite earning so much he still wouldn't have all that he has now. Makes sense?
Becoming rich is like standing on two legs: one leg is the "save and invest wisely" leg, and the other is the "increase your income significantly" leg. One without the other won't work.
Anyway, if you feel it's an old fart trick then keep spending your larger than average salary lor. Then wait till you're 40 and write back here. OK? :-)