That logic doesn't make sense. Everyone has the potential to do something bad. If you have a concealed carry firearm with you, should you get rewarded for not shooting someone on a particular day?
What's more interesting on the "good deed - bad deed" ometer is
> Among those who pinned down the attacker was James Ford, 42, who is also thought to have tried to save the life of a woman who had been stabbed. Ford was jailed for life in 2004 for the murder of 21-year-old Amanda Champion.
although personally I think time served and probation seems about right.