A good example of what I'm talking about is a guy like Peter "Petey Caps" Caporino. He and his gambling operation was associated with the Genovese family in New Jersey. He wore a wire, recording hundreds of conversations, which resulted in the arrest of several Genovese guys including captain Larry Dentico back in 2005. As surprising as it is, Caporino didn't enter witness protection and move half way across the country. He stayed right in New Jersey and continued to run his gambling operation; obviously still very much within the reach of the Genovese family.
Some would ask why this was. It's not like the Genovese didn't know where he was or couldn't get to him. And, as evidenced by guys like Ralph Coppola, Al Bruno, Larry Ricci, Rudy Izzi, William Marcucci, etc., it's not like the Genovese don't have the stomach to kill people anymore. It's because the risks outweigh the rewards once the damage has already been done.
Give it time though, he still might get taken out.