Which treatment is better, detoxification or imprisonment?

According to relevant public information, the monthly salary of drug rehabilitation centers is 4,000 to 5,000 yuan, and the monthly salary of prisons is 3,000 to 4,000 yuan. The working hours of drug rehabilitation centers are from nine to five, and those of prisons are from nine to six. Drug rehabilitation centers don't work overtime, and prisons sometimes work overtime. Therefore, the treatment in drug rehabilitation centers is better than that in prisons.