Chris was just a normal young guy doing what many have done before...
The thing that made this story stand out was the unfortunate, unusual and yes in some ways stupid, pointless circumstances of his death, and then the way it was picked up by and written about by John Krakauer. He was only 24, that's still young. RE the bus episode - young people do stupid things, it's allowed.
What if he had survived? Nobody would have ever known about him. By now he'd probably just be an average middle-aged guy with a story about going travelling some time when he was young. But don't get me wrong, that's what I love about the movie, and the book (and the movie soundtrack), he was a normal guy that went through some stuff that so many can relate to, in one way or another. The unintentional notoriety he achieved by dying in an unusual way doing something that is on the face of it quite common (solo travelling) is what makes the story poignant and disturbing. If the mistakes that lead to his death will stop others from taking the same level of risk, it wasn't so pointless.