1. The fundamental nature of the world and the intentions of its creator (
God, “
the One”,
Eru) are good. Good actions are in harmony with the nature of the world and will tend towards being successful (though not necessarily achieving a precisely envisaged outcome), whereas
evil actions are discordant with the nature of the world, tend to go awry and may even achieve unintended “good” outcomes.
2. Nothing is evil in the beginning (“even
Sauron was not so”). Tolkien is no dualist. Therefore everyone is potentially redeemable. But since God is the only adequate judge of such matters, pity and mercy are a necessary duty for the rest of us.
3. Since we have free will, it is necessary to make choices. The evil of
the Ring lies in the fact that it limits free will and removes choice. With the Ring Sauron can dominate the wills of others - that is the power of the Ring. The
Ringwraiths have no will of their own, they are the slaves of the Ring.
Gollum’s will has been almost entirely sapped by the Ring and
Frodo’s will be. The ultimate evil of the
orcs lies not in the fact that they themselves are evil, but in the way that they have been so fundamentally warped by
Morgoth/Sauron/
Saruman that they no longer have the power to choose to be good.