Did you know that, across China’s dynasties, whenever an emperor died, his concubines and palace maids were made to be entombed with him? Because there’s a logic here: the stability of many relationships doesn’t come from morality, but from an interest-based structure. Those bound to you by risk and cost often want you to continue to exist. Sharing interests creates cooperation, and binding destinies creates loyalty. So, the concubines and palace maids around the emperor all would not want him to die.