Omelas is a goddamned paradise. Omelas without the tortured child would be better, yeah, but Omelas as described is still better than any human civilization that has ever existed. (For one thing, it only contains one miserable child.)
Well it seems to me they are trading N dust specks vs torture in Omelas. edit: Actually, I don't like Omelas [as example]. I think that miserable child would only make the society way worse, with the people just opting to e.g. kill someone when it ever so slightly results in increase in their personal expected utility. This child in Omelas puts them straight on the slippery slope, and making everyone aware of slippage makes people slide down for fun and profit.
Our 'civilization' though, of course, is a god damn jungle and so its pretty damn bad. It's prett...
I laughed: SMBC comic.