However, example, when you come to the topic of War, when soldiers are forced to kill their enemies of war, if not due to the relatively shallow brainwash of justifications of your or their reason for war, suddenly the line becomes more blurred.
For war, it is the intent that counts, and the intent is controlled by those who make the offense, sometimes it would be to free the people of a certain land from in-justices( the heads of whom refuse letting go of perpetrating injustices otherwise), and most of the times it would be to capitalize/extend the control of one's regime to topple the other for resources/power etc. One can clearly see which side is wrong.
Now I'm not saying that we can all suddenly justify a serial killers' actions, however what I think it comes down to, is that particular essences of moral sense of right and wrong is pretty much ingrained in our natural value system, while certain written holy morality laws known to our society are not necessarily the ones that make most sense, as several others have pointed out already in this thread.
I agree, moral sense of right and wrong is ingrained in us, but sometimes we twist our thinking into justifying our wrong, and actually believing it to be right. With power comes great responsibility, if you are a parent you can either let your children go astray or be at their guard, you will be shaping their moral sense in so many ways, however if they see you abusing your wife, or cheating on her, one kid might think its wrong, the other might just pick up on it justifying it for himself. Who will make the moral distinction to him?
What I mean to derive from this conversation is, that people all over the world aren't born in perfect situations and that is one fact that we do know, kids growing up in gangster neighbourhoods have a high chance of assuming the gang activities if that is all they see and if that is justified to them( most evils are justifi-able). Kids who are abandonned also go through emotionally traumatic childhood from a very young age, they may justify doing the same when they grow up 'since I was abandonned too, and parental love is not real etc' ignoring the pain that they went through. Or, they might just waste their life in addictions,abuse,crime trying to get back at the world.
In such situations, there has to be a true moral , emotional and spiritual guide, and that in my opinion can only come from the correct depiction of God, who is there for everyone, no matter what, but denying that emotional and spiritual support to oneself, might lead you to refuse to come to terms with a wholesome picture of reality, which, sad to say is not being depicted by anything that we get to see. Whether its the media, movies, novels, music, its all fiction, it does not solve your problems, and that is what people spend most of their time on these days. Education may solve your financial problems, but it hardly caters to the disturbed soul.
Another poster pointed out that if religion was the saviour of morality and behavior why would xtians be in jail, well all that comes down to a personal choice. An athiest can be an average good person, and a believer may not be, but a believer who serves his punishment might want to come clean and be a better person than he ever was, maybe become a hero, which an athiest may never get around to.( just using this as an example, no implications)
Nelson Mandela was in jail for 27 years of his life, was his goodness affected? What was his source of goodness, read his biography. He mentioned in a conversation once, when he was asked how did he have the heart to forgive all those people who had been his enemies for so long, when he came out of prison. He said that he had met a muslim man in prison and he got a few books on the prophet Muhammad (pbuh) from him and was inadvertently genuinely impressed by his character, and enquired the muslim man as to what made the prophet forgive all his enemies when islam spread in Makkah, he replied that it was his declaration of general amnesty for all, for all those who had shown extreme enmity and severe disregard for him before the spread of the message of peace; an example never recorded in history before. And that sense of mercy was gifted to him by Allah (The One true God). One can ask for a greater sense of mercy from him, since he is the All merciful.
Nelson was quite touched to hear this and he is said to have practised the same when he became the president.
It is possible to be good to your friends, family , loved ones when you are just the way you are, but in my observation and opinion, people are far more caring, forgiving and gracious when they genuinely believe in God. Because you know then that what goes around, comes around and you fear being accountable to God one day, because he watches every move we make, and what we think.
You can be fully enjoying cheating today, and who knows you might be serious about someone tomorrow and they might be cheating on you as well. No need to mention what becomes of these relations, the society is ridden with them. You really don't loose that much self respect when you bind yourself to some rules, but rules can get boring when humans don't sense being rewarded for them, thats human nature. But when there is a concept of heaven and hell, people at least try to think before what they do; emotional crimes are just as crimes even if the police doesn't catch you for cheating, there is someone out there who might just.