One of my favorite historical topics is the Roman Empire, in particular, the "principate" under Julius, Augustus, Tiberius, etc. It was an "interesting" time period, to say the least.
Anyway, I'm wondering if people would generally consider all of the leading figures from this time period to be irredeemably "evil" given the fact that virtually every one of them was responsible for slaughtering thousands of people. Anyone who has read Julius Caesar by Shakespeare knows how much butchery was taking place between the waring patricians. But are they truly evil? Or were they just reacting to the circumstances? How would you behave if you were born into such a treacherous environment? Also, do you differentiate between Tiberius as a general or Tiberius as Emperor? Basically, is it less evil for the generals to carry out orders than it is for an emperor to give them?