Right and wrong. Good and evil. These labels reflect social collective thought. Group subjective ideology. When the only people you surround yourself with are those who share the same group subjective ideology chances are you will go along with the herd.
The Euthyphro Dilemma asks: do the gods love good action because it is good, or is good action good because it is loved by the gods?
In the case of Jehovah's Witnesses it is no surprise that the later holds true for them. Anything Jehovah says, does, or wants is good because he loves it. Therefore right and wrong/good and evil do not apply to the thinking process of Jehovah's Witnesses. The only thing that matters is obeying Jehovah.
Case in point: Commandment VI of X - Thou Shalt Not Kill
It seems pretty simple. Don't kill. That is until later when Jehovah order seven separate nations to be destroyed.
When you ask one of Jehovah's Witnesses why they don't support military service in light of the fact that the nation of Israel had soldiers that fought many wars you get a response like: "That was righteous warfare. That was divine warfare. Jehovah commanded it."
So, in reality, Thou Shalt Not Kill is not a matter of morality. It is a matter of killing is fine when Jehovah orders it, but outside of that, don't do it.
Well, which is it? Is killing right or wrong? Is killing good or evil? It seems neither. If it is wrong or evil there would be no circumstances that it would be alright.
How about rape? Jehovah's Mosaic Law has a definitive answer to that; it depends. Was the woman a virgin or was she married? According to Deuteronomy 22:28-29 a man who rapes a virgin just has to pay the woman's father 50 pieces of silver and marry the woman. He can never divorce her. If the woman is married then you just kill the both of them.
To some up being a Jehovah's Witness: Do whatever the Watchtower tells you Jehovah wants. It beats everlasting death and you can live forever on Earth if you do. Right or wrong. Obey or die.