The first three that you allude to are, without doubt, the most important things in life! But man has evolved beyond these most basic needs. He has acquired other needs: getting drunk, having a feeling of power and superiority, satisfaction in doing a good job (well, many people anyway), obtaining frills and other attractive things (which, in turn, require money of course, so we can add getting rich). So many things that people live for!
My father in law used to maintain that everyone - absolutely everyone - is a hedonist. Yes, people like Saint Bob Geldof appear on the face of it to be altruistic, but even then I bet the act of giving poor people food/money (or, more correctly, persuading other people to do so!) gives him a nice warm feeling inside. Yes, he is a hedonist too!
