To speak about the evil, and I mean Evil, with a capital letter, first of all you must have known it.
Not read, not imagined.
Known, breathed, lived day after day.
The evil often hides behind the good. Obviously. Otherwise it would be easily recognized and unmasked. Hidden behind the good, it can act untroubled.
I mean: Iago tries to persuade Otello that Desdemona is unfaithfull repeating lots of times the concept that he is telling him this for its safe, than he would not never dare to hurt his feelings.
The members of the ftpb smiled to me, touched me with affection, cooked exclusive dishes only for me: actually they wished me bad luck, touched me to (according to them) send me the most horrible curses, prepared exclusive meals for me to put whoever knows which magical powder in my dish.
The evil is fought with the evil. Don't be naive. The good is weak against the evil. The good fights with watered weapons. The evil uses instead EVERY weapon, especially the good, above all the good (of course, the good functional to the evil).
Innocent people cannot do anything against the evil. If you have been taught this, is subject only for a feuilleton.