Yes it can work in reverse too in a "learn from other's mistakes" kind of way. In a decent decentralized network, the harm in one location can become a lesson learned at all others. 

One example could be autonomous cars and the ethics/laws of what happens under crash conditions. Even at a base level, the learning of one car sliding off the road on ice for example could send out an update warning to all other cars approaching the area and have them adjust accordingly. 

These wake up call learning opportunities could do a lot of good.