It's increasingly seems that the powers of prosecutors are deployed in arbitrary and unjust ways: either overreaching (as in the case of Aaron Swartz or Xiaoxing Xi) or non-prosecution of police brutality or corporate crime (just changing now that the statute of limitations run out on those responsible for the 2008 financial crisis) It's not clear what can be done about it, other than occasionally writing a check to…
I honestly think the only thing that could ever change it is if some vigilante with nothing to lose started bringing the same flavor of extreme justice to the doorsteps of the people passing it out - fear of potential ramifications will very quickly change behavior.
Considering that fear of ramifications has proven entirely ineffective in preventing certain kinds of behavior in other aspects of the justice system, I don't think this would be as effective as you might think