Dolokhov is of course right about what happens to the French prisoners that Denisov keeps sending away. They all die, and quite miserably, too. Dolokhov’s cold logic is to kill them now because it’s more ‘humane’ and less of a drain on their own supplies. Denisov, try as he might, cares too much about morality and isn’t the rascal Dolokhov is. But in war Dolokhov is probably more effective, unfortunately.