Bon’s quip is a way of saying that everyone must die for something. Though the narrator has pledged an allegiance to the North Vietnamese, he has not yet expressed a wish to die for his Communist values or for any other values. This leads one to wonder about the depth of his commitment to anything. Bon may seem crazy, but he is willing to die for the honor of his country, which he feels was dishonored by the U.S. Arguably, this gives his life more value than that of the narrator because it’s more purposeful.