Consequences? Everything has a kind of consequence. Kind of like risk vs reward. Some people see victims in our group. Let’s say... They prey upon our group and kill someone... let’s say the little girl and Anastasia. We kill a few of them and there will always be a vendetta of sorts between the groups. Everyone will end up fighting and killing one another for vengeance. Like in the walking dead. 

To me Consequence is not seeing that kind of downward spiral. I would like to think that I could see it and move the group past that. If you were getting at spiritual consequence or emotional then those are a bit different. Insanity could develop within someone from hearing the constant moans of the undead or from seeing them pull apart a loved one. To allow it to get to you on such a level that your mind snaps seems another consequence. The moaning could be stopped with earplugs and/or listening to music on a really low setting through earbuds. 

Spiritual consequences are... in my opinion something developed based on personal opinion. Each god or belief out there seems to have some kind of strict rules. To me using that as a power base to control others breaks your spiritual connection to others. Spiritual and emotional connections to others can become strained and taken in situations like this. The fact that most people cannot handle and outbreak and mentally snap breaks most bonds. Either the parents of a child break down and kill one another or they get torn apart from the undead and the child lives. That child will be broken in a way. Consequences of keeping that child around could be bad. As seen in walking dead. Although snuffing out a life is never a simple matter. That and if shown enough love and hope they could become a stronger person for it. Even though they will always have that baggage they will become stronger.