My english teacher said, "a modern hero is essentially larger than life." what does she mean by this?

A modern hero is someone who looks good in the public eye. Makes the media look good and Hollywood look good. A modern day hero is no hero at all. A real hero to me personally is someone who does his fellow man good. If you're not doing that then you're not a hero. (These are all my personal beliefs and dont reflect anyone but myself)

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