To be Legend

I recently watched I Am Legend, a cool movie with Will Smith as the main character. It has great idea of Love, passion, and the most important thing for me is, the dreary part of being a legend. In the end of the movie, Will Smith sacrificed himself in order to save another characters. That's way he becomes the legend, because he was no longer alive to witness his own success. His heroism reminded with people whom also being legends by graving their own sorrows in the history, such as Mohamed, Jesus, Marie Curie, Byron, and so on. They have something in common, unimaginable sorrows. I think that is way people want to put their names on the hectic history notes.
Admit it, we want to know about them partially because their tragic lives. We are drawn to how they suffered in their lives and not for things that they achieved so far. I mean, we know that Marie Curie is the inventor of iridium but who's gonna give more damn care if she didnt get cancer due of it. We are vultures of other people's suffers.There is nothing wrong with it, arent it?