A man who runs into a burning building and saves someone's life is everyone's notion of a hero. The opportunity to perform that level of heroism is rare. That's likely a good thing. Unless you're a fireman, policeman, or soldier, all of whom assume daily risk, there's another less dangerous road to personal heroism, although it still involves risk.
This year's Oscar nominees for Best Picture tend to emphasize the worst in humanity. For example, Joker is about the descent into homicidal madness. Jojo Rabbit is about one of the worst events in human history, the Nazi Holocaust. 1917 is about another catastrophe, World War One.
Remember the thrill of building walls as a kid? Forts made from snow, or a giant cardboard box. Burying ourselves in blankets and pillows. Walling ourselves off from our enemies - real or imagined - to fight heroic battles until it was time for dinner.