The nearest thing in the English language that describes what you want is probably "vengeance." Oftentimes, justice and vengeance are mutually exclusive.
I am quite aware of the history of the word "karma," and I know that karma is a natural process, an impartial concept; claiming to be a vanguard for this process is pretentious at best. What you and others fail to realize is that you are acting just like the monsters you so viciously condemn. What you and others fail to realize is that, while the leaders of NPO and friends may be reaping what they have sown, the seeds you will sow if you travel this path are not much different from theirs.
But do not let me hinder your desires for revenge, Shylock.