I think that we all know what evil is. We have a sense of what's evil, and certainly killing innocent people is evil. We're less sure about what is good. There's sort of good, good enough, could be better - but absolute good is a little harder to define.
To probe for unconscious determinants of behavior and then define a man in their terms exclusively, ignoring his overt behavior altogether, is a greater distortion than ignoring the unconscious completely.
I try to write in plain brown blocks of American speech but occasionally set in an ancient word or a strange word just to startle the reader a little bit and to break up the monotony of the plain American cadence.