[visakanv]

It works remarkably well in almost all conditions except in cases of human tragedy. Then it's usually more tasteful/appropriate to be sensitive. (But if you're willing to go there, you could say that seeking pleasure, seeking love, seeking glory, etc are all variations of self-amusement/utility-seeking.)

(Of course, anything that explains everything explains nothing, but fundamentally the point is that life is absurd, and we'll have to acknowledge that- I think it was Albert Camus who wrote extensively about it in The Myth Of Sisyphus.)