An argument that is made for giving in to our hedonistic desires is that it is cruel to perpetually deny and disappoint ourselves. But really, disappointment is a given. For on the one hand we want one thing, but on the other hand we want its opposite.
We want to get away with telling lies, but we also want to be understood as we truly are. We want to lust, but we also want to have mastery over self. We want to treat ourselves as the center of the universe, but we also want to be part of something that bigger than ourselves. We want to be lazy, but we also want to be there when others need us.
Disappointment, frustration, self-denial…one way or another all of these are inevitable. And so long as one side of us has to be disappointed, why not make it be the carnal, selfish, and dishonest side?