I think one of the more interesting things about the episode is that it is one big FU to TNG's utopian nonsense (one of many in DS9).
O'Brien shatters the edifice of TNGs "new more evolved humans." Its nonsense and the writers on DS9 knew it. They even go so far, at one point in the series to have Quark point out that Humans are a friendly and nice people as long as the power is on and their bellies are full. Take that away and we become as savage as any Klingon. TNG, because of a directive from Roddenberry, frequently denied such sentiment. DS9 called it out for the silliness that it really was.