Yes, of course there are people in China who, when their job puts them in conflict with their ethics, will decide to do something ethical. I can't think of any war-related examples, since it's been a while since China was involved in any big wars, but I like the story of Liu Lipeng, who used to work as an internet censor: https://madeinchinajournal.com/2025/04/03/me-and-my-censor/