"No good deed goes unpunished"
Sometimes on this website, this quote seems to be the rallying (adjective : rallying - having the effect of calling people to action) cry of the many.
Update: Web surfing today and found that this is Ferengi Rules of Acquisition #285. No good deed ever goes unpunished. ("The Collaborator")
Confirms that all we need to know about life is on Star Trek.
Ferengi Rules of Aquisition: http://marvin.cs.uidaho.edu/About/ferengi.html