I do think that this is something that will continue to be explored and thought about. There are reams of text around the evils of various things to the point they cannot be mentioned apparently in certain RPGs, but yet the whole system revolves around violence at a pretty fundamental level.
The fact is most people havent the slightest concept of violence, what it can do, the impact both physical and mental, and how it remains a part of you long long after the fact if not forever. Combine that with the very American portrayal of violence as a 'good' or at the very least acceptable in comparison to other moral issues (sex, drugs, whatever) and yeah, people just brush by it or describe it overly because its not 'real' at all, or so they think, but it sticks, its there in the mind, and there are studies showing that real or not, the mind can make it real.