I like Moist, other than the twinges of evil that lurk in EVERY man anyway, he is basically driven by his own moral compass, his just points South a lot. He is intelligent, articulate, even, sort of, saved by the love of an interesting woman, who smells like an ashtray, but in a nice way.
Set a thief to catch a thief, there is nothing that stops him from using said naughty skills to help people and the stamps were brilliant.
Moist simply plays with his Jungian dark side on a tightrope, balancing a golem in one hand and Stanley and Mr. Groat in the other. Underneath it all he is actually "good" in the broadest sense of the word. He never murdered, or actually "tried" to Hurt anyone on purpose, he just wanted to use their "Own" dark side to try and take advantage of Him.
They are everywhere, Three Card Monty, Lottery tickets, Scratch off Lottery Tickets, Politicians, Churches (Organized and NOT B'Hai faith), Fundraisers where 80 to 90% of the money goes to the workers and Not the poor. Moist is Not in with these characters.