Not that it matters much, but I do want to be clear: in the matter of conduct during war, and specifically during the period between 1792 and 1815, every commander, high, low, and in the middle, either committed or ordered to be committed acts that some people today, or even earlier who were not present at the events in question, flap their hands about, condemn, or excuse on a variety of grounds.
I'm not making a judgment call on 2000 Jaffa prisoners, Neapolitan rebels and spies, or Ney and LaBedoyere. Bonaparte believed the situation justified Jaffa, Nelson thought the same about Naples, and Fat Louis as well regarding "traitors."
In war, folks, stuff happens. Acknowledge it without all the judgment calls pro or con, and move on.
However, some folks just won't let it go...