"My point was comparing pains and pleasures that could be generated with similar amount of resources. Do you think they balance out for human decision making?"
I think with current tech it's cheaper and easier to wirehead to increase pain (i.e. torture) than to increase pleasure or reduce pain. This makes sense biologically, since organisms won't go looking for ways to wirehead to maximize their own pain, evolution doesn't need to 'hide the keys' as much as with pleasure or pain relief (where the organism would actively seek out easy means of subv... (read more)
We could certainly make agents for whom pleasure and pain would use equal resources per util. The question is if human preferences today (or extrapolated) would sympathize with such agents to the point of giving them the universe. Their decision-making could look very inhuman to us. If we value such agents with a discount factor, we're back at square one.