When characters are put in extreme situations, they become more extreme versions of themselves. A stoic person, for example, may become immovably resilient. A normally popular person can become a great leader.
People can also become very different from their normal selves, too. The quiet person could find themselves being a valiant warrior.
In any case, extreme times eventually end. People resolve the issues at hand (or die). And when the world returns to normal, the people will, too.
So much is told of heroes and their adventures, but there is so much more to people and their lives. I am interested in seeing what happens to people after they've become extreme, and then normal returns.