I think common man shows that you don't have to have an extraordinary job like an investment banker to be rich.
Say he and his wife get 6 months bonus, so this implies that his combined base is about $260K and each have base salary of about $11K/m. At 50 years old after working for 20-30 years, $11K/m isn't that hard to reach if you are a graduate.
Saving and doing some mild investment in property and stocks, he has accumulated net worth of about $4m and a lot of it is in
CPF. That is mighty impressive and shows that if you don't blow all your money on toys, clubbing and expensive vacations, you can have an extremely comfortable retirement.
common man, its time for you to enjoy some of your savings. you never know how long you are going to live and spending $85K per year in Singapore means that you are very frugal. Go buy that Mercedes S350 with all the trimmings and enjoy. You deserve it.