And also, you're right, those people do work in the defense industry.
Murder is the most vivid example without adjustmenting for income, but one can trace similar patterns across ambulance response times, food quality, transport efficiency, etc. Transparency International's report on their metric is a good starting point.
[1] http://cpi.transparency.org/cpi2012/results/
[2] http://www.unodc.org/documents/data-and-analysis/statistics/...
[3] http://imgur.com/a1N5WXm chart!
The USG doesn't tend to assassinate its contractors.
One perspective on this type of activity is that of early Buddhism, which 2500 odd years ago summarized that one should not engage in five types of business. Which five? Business in weapons, business in human beings, business in meat, business in intoxicants, and business in poison. — AN 5.177 http://www.accesstoinsight.org/ptf/dhamma/sacca/sacca4/samma...
(It's great that you are or seem to be, though, if that works for you. The world I'd be most afraid of would be where 99% of people were pacifist and 1% were sociopaths, though)
Money: not fuckin' worth it.