It always does. Iran, once known as Persia, was a decedent society. Now it is the most reserved of all religious people. Rome has shifted back and forth several times between orgies and religion. The U.S. is becoming increasingly more decayed from its own filth, and at some point in the future the pendulum will swing. In Iran the pendulum is about to turn.
"They must find it difficult - Those who have taken authority as the truth, rather than truth as the authority." -Gerald Massey