Yes, I do realize that Fe consists of externalizing thoughts and passions -- it's also by extension responsible for skills in arousing people's passions and manipulating/maneuvering their moods into a desired outcome. Blocked with Ni/Se (especially when Fe is the producing function) leads to a desire to channel that skill into longer-term goals; which in essence leads to manipulation. Or rather, to a specific type of emotional manipulation. Gammas are just as conniving in a different way; and Judicious types are capable of it; though being less ambitious they're less likely to use it to control-related ends.