Maybe, but if I were a low-lifer, I’d think twice on taking on someone who knew how to shoot so well, especially if they had many more friends like me (in real life) to join them.
Low lifer? You’re talking about a complete breakdown in society. It would be a dog-eat-dog battle for survival. Anyone with a hoard will become a target for everyone without. The govt may even outlaw hoarding and come in and coniscate everything as they fight to keep their positions.