There was a guy, a hermit really, who lived near a cliff in Australia if I recall. It was known as suicide cliff because so many people went there to jump. Eventually he'd go to that cliff during his spare time, wait for people to show up, and ask to have one last conversation before they did what they came there to do. Turns out these people just wanted somebody to listen to them. Nobody cared, and they'd had enough. I'm not sure how many dozens of people he saved, but he had no psychological credentials, no real money or network, and certainly no status in the world. But he listened, cared, and somehow the right words and/or silence were exactly what people needed.