You democratize heroism. Everybody is a hero, and simply for doing (and often not well at that) the ordinary tasks of living as a half-decent person. Does your mother fix you breakfast? She is a hero. Does your father visit you every weekend without fail? A hero. Does your teacher mark your papers faithfully when you make a mistake? Unexampled heroism, that. If everyone is a hero, then no one is a hero; and genuine heroes will go unnoticed in all the mindless self-congratulation.