Remember this sentence (that i love/not exact wording) i seen once in a novel :
A person that have evil thoughts (murders, arsons, torture, etc) all his life but never did anything bad until his death is a good person, but a good person cant resist their urges and did a crime once is a bad person.
A person that have evil thoughts (murders, arsons, torture, etc) all his life but never did anything bad until his death is a good person, but a good person cant resist their urges and did a crime once is a bad person.
Unless your just talking about movies.