I don't think it had any redeeming value.
Zhang Jingjing speaks to her family's experience during the Cultural Revolution and discusses how seriously damaging the Cultural Revolution was to Chinese history and culture as well as to interpersonal relationships.
Deng Xiaoping had a saying: 'Poverty isn't socialism.'
Wang Yong talks about how the catastrophe that was the Cultural Revolution fundamentally changed the views of many Chinese, and continues to influence the general population today.
Communism, as an ideology, was all but dead at that point, completely discredited.
Philip Pan describes how the Cultural Revolution discredited communism to the point that it allowed, or perhaps even forced, China's leadership to "do an 180 degree turn" and embrace capitalism.
The period from '48 to '78 laid the groundwork for the type of dynamism that we saw after.
Trevor Houser explains how China's rapid growth in the last 30 years is a result of pent-up growth potential being released when Deng Xiaoping corrected Mao Zedong's misguided economic vision.
The participation of [Chinese] women in the workforce today is higher than the world average.
Pallavi Aiyar explains that the empowerment of Chinese women in Mao's time is one of the reasons that China is growing faster than India.