or, as I comment rather frequently, many soul contracts/lesson plans, or improv scripts, which term I prefer because that encompasses the reality of free will, require villains and someone has to agree to play those parts — they could do so just for the experience of what it feels to perpetrate evil, or they could do it just because someone has to for all this to work--someone has to agree to play the villain

https://medium.com/know-thyself-heal-thyself/lets-talk-about-villains-and-victims-c7795f2fa91e