Well, I do not think there is much correlation between dream character abuse or dream environment destruction and a future lack of Lucid ability. I suspect that if the person genuinely thought that what they did was unethical or amoral their unconscious may 'punish' them by temporarily baring their conscious self from enjoying the fruits of the lucid dream state. It is pretty well documented that people with a guilty conscience can be beset with a variety of neurotic symptoms if the guilt remains unresolved, but whether there is such a thing a dream guilt, I have no idea if such a thing is likely. Everyone is unique in their psychological character, and how ever unlikely it may sound I think it is possible.