Two of Swilly's themes are social ones, though: Hierarchy and Taboo (mostly as a way to control people below you in the hierarchy). And, really, I think it's fine if the themes of two Yozi overlap a little. For instance, Malfeas and Isidoros both share the "Never give up, never surrender! ALWAYS FULL POWER! No one can control me! I will punch my limitations in the face until they stop being limitations!" themes.