Well this is cool! I'd have to say I always thought the same thing, because it applies to people as well so I decided a long time ago I wanted to break the stereotype, one of my main characters is a Half-Demon, a Cambion, he is bad in the beginning, sadistic, cruel and unfeeling but the other MC Jessa soon learns that he only acts out this way because to him, it's easier to be the bad guy, then be the good guy, the expect him to kill, they expect him to be evil, and then there are the fallen angels. Fallen angels who made a mistake have a chance to gain their position back in heaven, and yet some turn their backs against heaven soon becoming Forsaken. I thought it would be cool as to say some angels can fall from heaven and become evil like Lucifer did, but I also saw fit to adding some demons can become angels as well.