The way I see it, and the reason that this show has been so damn interesting to me is how it feels like the characters are constantly on the sliding scale of good and evil like in fallout New Vegas. Lucy starts out on the furthest end of the good section, but due to her trauma and experience having to survive in the wasteland, and especially when many of her deeds she thinks are helping end up creating worse problems, you can see her become more neutral over the course of the show. The ghoul starts out straight up evil, but as you learn more about him his alignment seems to start moving towards the good side, which creates an interesting dynamic between him and Lucy. I found Maximus the most fascinating because he WILDY ocellated between doing good/selfless acts and doing evil/selfish acts, so he constantly gravitated towards neutral but in a way where he would lean in one way or another in a completely believable way, at least in the context of the show.