Tom is entirely beyond caring about "good" or "evil". His peace is such a vital contrast to every other character and has stuck with me over time.
Yeah, exactly this. To me, Tom is a part of nature, even moreso than the elves or the ents, which isn't really good or evil. That's another reason I didn't like this post at all. Tom isn't some malicious force, biding his time until Sauron leaves when he can dance upon the corpses of the Hobbits. He's a mystery, a hint at the depth of the world, and a curious aspect of nature.
I think characters like that can make the world seem more... worldly. It gives a perspective that everything doesn't just revolve around the central plot.