Two Wrongs Don't Make A Right. Interesting Theory, But Do We Follow It?

We're all told that two wrongs don't make a right, but in what instances is this philosophy implied.

In English a double negative (two wrongs) make a positive (right).

In Math, it's the same concept, two negative signs equal a positive sign.

Most Science is based off of math so technically some of the same rules apply here.

Physics states that for every action there is an equal, but OPPOSITE reaction, meaning that if someone wrongs you, you're supposed to equalize their wrong with a positive reaction.

Historically we bomb and attack people after they attack us. i.e. Pearl Harbor lead to Hiroshima & Nagasaki and 9/11 lead to the "War on terror".
The taking of a life is morally wrong, but we do it to justify the lives we lost... does that make it right?

So when do we use this rule? In our daily lives? That's funny. Most people live by the "eye for an eye" creed which is basically justifying negative behavior for a negative behavior in order to "set things straight".

It's funny how when we're the one's on the receiving end of the second wrong, meaning we've already wronged someone and it's time for us to get ours, we spew "two wrongs don't make a right" in order to guilt trip the person into not retaliating.

Then again.. there's also another saying, all is fair in love and war. You want to know why they hold love and war in the same standard? Because they're the same! If you're in love with someone, you know what war really is like.

I brought that up to get to my bigger point. The only time we wrong someone or are wronged by someone else is in Love and in War, so if everything is FAIR in love and war that'd make the claim "two wrongs don't make a right" null and void right?

-Roderic

hope I didn't confuse you.