Mao, our fourth protagonist, probably didn't specifically demand the persecution of Chen Mengjia. He didn't need to. (Society also doesn't need to, either, to snuff out undesireable voices.) But he pre-empted some of the Hicks irony with his own form: After being strongly of the mind that Chinese Characters should be done away with in order to increase literacy, he did an about-turn and decided they just needed to be simplified. At the time it wasn't explained why. But Mao had said it and thus it was done. Literacy didn't improve but in death, perhaps, Chen might feel better though not if he knew the whole story: According to Hessler, Mao wasn't swayed by the martyr-like words of people like Chen; he had a chat with Stalin who advised against it.
We can pipe up and pipe down but change often happens in its own way.