Likewise a lot of crime isn’t “crime” at all. Kill someone by putting lead in their lungs by means of a firearm and we call it murder and you go to prison. Do it by dumping lead into the air from your factory smokestack and we call it business and you get rich.
Murder some foreigner at the behest of your empire and they'll call you a hero and pin shiny medals to your chest. Kill the guy who ordered you to murder the foreigner and they'll call you a murderer and feel self-righteous when they murder you.