Promises
If a promise can't be kept but is still made, what trust can be left within the person? Will they still be able to trust people, still be able to hope? If, little by little, their beliefs are whittled down to the point where they no longer can open themselves up to others, is there really something worse?
Don't get me wrong, murder is horrible, so is sexual assult and bigotry. But people are still able to form trust in people as long as they live, as long as they haven't given up on trusting people close to them. Their last supports. Healing is still a possibility as long as there is trust and hope.
If someone is fooled multiple times, with multiple promises broken, can they continue to trust themself? They, as the person who has been fooled, will no longer be able to believe in their own actions, in their own beliefs. And will end up destroyed.
What could be worse?