Whenever there is a separation between values and practice, things break down. In ancient China, the people desired security from the barbaric, invading hordes to the north. To get this protection, they built the Great Wall of China. It's 30 feet high, 18 feet thick, and more than 1,500 miles long!
The Chinese goal was to build an absolutely impenetrable defense—too high to climb over, too thick to break down, and too long to go around. But during the first hundred years of the wall's existence China was successfully invaded three times.
It wasn't the wall's fault. During all three invasions, the barbaric hordes never climbed over the wall, broke it down, or went around it; they simply bribed a gatekeeper and then marched right in through an open door. The purpose of the wall failed because of a breakdown in values.