Tell me this after you have been in an accident with a drunk driver & were injured as a result. It happened to me. The s.o.b. pretty much got away with it. He spent a month in jail at the most. Thankfully for other people it was a single vehicle accident, I was the passenger, had no idea he was drunk. I had a concussion as a result.
So tell me what would be sufficient retribution for this? What if you didn't have your facts straight and you hurt the wrong person? What if in the middle of your tirade, you accidentally hurt or killed someone else?
By the way, you are not the only person to be a victim of a crime or carelessness. It happens everyday. We can't just start beating people at will. It would be total anarchy.