Whatever else the Phantom Stranger may or may not be, he's also a rather nice guy. He isn't perfect and some restrictions on his powers prevent him from doing everything, but he's still willing to make the effort to help folks anyway, no matter how seemingly small that effort is.
(This is from the "Footsteps" origin story--the one where he's sort-of a fallen angel and sort-of not--which, I believe, was written by Alan Moore and drawn by Joe Orlando. It was hard to decide on just two perfect pages that sum up P.S. decently, but I like these two most.)