The Temple of Zeus must've struck awe into the hearts of visitors when it was complete: a hundred plus enormous Corinthian columns holding up the roof of a temple, inside which sat Zeus himself, a giant statue made of ivory and gold. "OMFG," people must've said when they saw it, and in the case of Zeus, the "FG" wasn't just a figure of speech.
Lord Byron gave his life in a Romantic (that is to say, useless) gesture, wishing to join the resistance against the Turks. He wrote some poems, too, but those had limited persuasive effect. Nevertheless, if he hastened the end by even one day, one hour, if he helped save but one percent of one tenth of one of those mighty columns, he is a hero to the world.