The Golden Rule

“So in everything, do to others what you would have them do to you, for this sums up the Law and the Prophets” (Mathew 7:12).
This phrase of Jesus spoken during the Sermon on the Mount is referred to as the Golden Rule. I am curious how the world would react if the Golden Rule was enforced.
Consider how our lives would be if the way that we treat people determines the way others treat us in return. People would speak more encouragingly to each other and hesitate to raise their voice. Taking a drive in traffic would be easier, no longer being cut off at every angle. Even politicians would find a way to be polite.
How would this effect our lives? How this world will be different? Perhaps every person rich or poor, weak or strong, young or old would receive special attention and be invited to a place of honor as guest. People would cease to gossip and slander one another over meaningless traditions.