Same reason why there was very little crime for many years in China when The Party ruled the country with iron fist. Laws are written by people in power -- be

Same reason why there was very little crime for many years in China when The Party ruled the country with iron fist. Laws are written by people in power -- be it dictatorship or democracy, the stronger the ruling class (represented by government, police/military and judiciary system), the harder to conduct criminal activities. When a criminal activity gains enough support, it will be legalized, like marijuana and prostitution.