Neil Armstrong was a hero of this stripe: constitutionally humble, circumstantially noble. Nearly every obituary written for him this weekend has made a point of emphasizing his sense of privacy, his sense of humility, his sense of the ironic ordinary. Armstrong's famous line, maybe or maybe not so humanly flubbed, neatly captures the narrative: One small step for [a] man, one giant leap for mankind. And yet every aspect of Armstrong's life -- a life remembered for one act of bravery but distinguished ultimately by the bravery of banality -- made clear: On that day in 1969, he acted on our behalf, out of a sense of mission that was communal rather than personal. The reluctant hero is also the self-sacrificing hero. The reluctant hero is the charitable hero.