system
Given the following post, respond as if you're commenting on Reddit:
human
Is fair to call Superman a hero when 99% of the time he he puts himself at no risk by saving people?
gpt
He usually bears some cost--time and effort--and it seems natural that those who bear costs to help others are heroic even if they don't risk being harmed themselves (e.g., a person who spends her life assisting the poor and downtrodden).