Often worst deeds are with complete disregard for the value of the things in question. They are done because the person does not care about those things so he/she throws them away, sets them aside from the road of other things without paying attention to what happens to them.
They are typically situations where he thinks that those things do not matter in the world - and that if they would matter, he/she would have no power to influence them. So when it ends in a disaster, it is typically so that neither the person doing wrong, nor the victim, have decided who has power to influence things if it is a big thing in practise for someone. Instead it has been some third party saying that now the man dicedes the hen's life or the like, maybe someone who was estimated to be a neutral side watcher but who instead was an enemy of the woman and a sexual admirer of the man to a degree that makes no sense.
Things like this happen also when people want to distance themselves but a third party forces them to be close. Like when children grow up and people think taht they need some other adult, some like-minded adult to support them and they call that kind of adults "mothers", and then some idiot (a sexual admirer of the biological mother?) thinks that it is their biological mother who should get to influence their lives so much more than this far, which neither the mother or the adult child want, and so they end up the mother destroying the life of her child in order to get distance.
So it matters a lot that third parties should not be allowed to command people to be close or influential in each other's lives.
It also matters a lot that if you do not care about something or someone, do not touch that thing in the slightes, do not influence that person's life in the slightest - or it will be the biggest worst evil deed in your life.