After each mission, a wetworks guy comes in to clean up your mess. This guy disposes of all the dead bodies, witnesses and careless bloodstains left by the hitman. Think of Harvey Keitell in the movie Pulp Fiction . The wetworks guy needs to be paid, and the more cleanup he has to do directly relates to how many zeros he'll find on his paycheck. You got it, straight from your paycheck.
Nothing is free - even in the virtual world of a hitman.
So it really behooves the player to be as stealthy as possible. I knew you could. Codename 47 is chock full of cool features. You can then drag their lifeless body behind a garbage can or some other unsuspecting location. Yeah right, like that guy's a tourist.