Sacrifice is proof that people are ruled by ideas. That they put concepts and notions and the continuation of society above their own lives, whether because they're dedicated to a cause or simply to weak to stand up for themselves on a point of contention with their fellows.

Who cares to sacrifice, and why do they do it? People who believe in something, maybe because it's easier to believe in than nothing, or easier to believe in than themselves. The great irony of sacrifice is that it seems more often offered as atonement for past sins or a pledge of dependency than because it is truly required.

If you think you're a better person because you sacrifice, forget it. You do what you do because YOU want to, even when you think not. Because you have made a choice to select that path instead of another. Why live in illusion?