a park ranger is a protector. You protect the land from the people, the people from the land, the people from each other, and the people from themselves. It's what you are trained to do without even thinking, a reflexive and unconditional act. If you're lucky, you get assigned to people who seem worth saving and land and waters whose situation is not hopeless. If not, you save them anyway. And maybe in time, saving them will make them worth it.