It's hard to keep alive people who kill others that help the government work. They have way too powerful unions. Cops, public teachers, mail carriers, and obviously politicians.
I don't wanna place more value on one life to the next, but the world would react more more crazier when a senator or governor gets shot as opposed to a regular entrepreneur.
As a general rule, killing a person that works is worse than killing somebody that doesn't have a clearly defined job.
I know if you catch AIDS it's called "cancer" if you have a job and it's called AIDS if you're unemployed.