Well I could say that you should have enough money to buy your daily needs in your life. Then go work on other things if you need luxurious items.
Too much is bad and Lesser Money is bad also.
Too much is bad, why? Let's say there is no room for you for spending this money, well you can do charity works if you have much and the fact you are in risk of being a victim of petty crimes. (Mugging, Robbery, Snatching)
Less Money is bad, why? Hmmm, remember survival is the policy in life, if you haven't possess money that is required for your daily needs. Surely you will be dead in just a month.