We have seen that virtue is subject to changing definitions in history: among the Greeks, virtue was based on superiority, and often no attempt was made to disguise ruthless oppression, because precisely that was seen as virtuous - and so Thucydides reports the Athenian delegation speaking to islanders of Melos and threatening them with destruction if they fail to give in to Athenian demands, and so Alexander builds an empire by attacking, without provocation, neighboring countries, causing the deaths of thousands - such behavior was seen by more than a few as virtuous.
Some Romans likewise embraced harshness as virtue - Marcus Aurelius, whose calm Stoic aphorisms tempt one to picture him as a even-tempered sage, spent almost his entire career as emperor, not on a throne, but engaged in bloody and vicious battles, and penned orders for the executions of thousands of innocent men, women, and children, whose only crime was participating the new religion known as Christianity.
After Constantine's example of tolerance, by which he legalized Christianity, and declined to seek revenge by persecuting the pagans who had been persecuting the Christians, we seen a shift in ideas of virtue - respect for human life becomes a central ingredient in the common European notion of virtue.
Yet hints of the old warlike virtue of competitive superiority remain: certainly in the half-Christian, half-pagan epics like Beowulf and the Nibelungenlied, but even in much more modern and post-modern examples: Nietzsche praises the virtue of a man who cruelly exploits any form of weakness in his fellow humans.
In our own time, Hillary Clinton has been praised for "her opportunism, her triangulation, her ethical corner-cutting, her shifting convictions, her secrecy, her ruthlessness." These words, which would be perceived as insults according to the common notion of virtue, are conceived as praise by Maureen Dowd, a supporter of Hillary Clinton, who uttered them. In announcing what she considers to be Clinton's virtues, she describes what most people would call vices: "She is cold-eyed about wanting power and raising money and turning everything about her life into a commodity."
Perhaps Maureen Dowd and Hillary Clinton would be more comfortable with Octavian and Themistocles.
