this terrifies me. i can look at just about anyone -- myself included -- and tie them to a vicious deed in 3 hops, and point out that their current path is likely to facilitate more vicious deeds. "you work for a company which has sold technology to a foreign government that used it to murder journalists and suppress the public", or even just "you paid taxes to a government and funded the use of weaponry associated with widespread casualties in a foreign war which most viewed as unjust by the time it ended".
if i adopted author's point of view i would be compelled to murder one in three people i meet everyday. the consequentialist view, in contrast, makes it easy to convince myself that doing so is the wrong course of action because it has no "deterrent effect" (or it deters the target from as much good deeds as bad deeds): that retribution against every wrongdoer isn't likely to bring about a world of greater moral worth.