Haha Lung keeps doing one thing across three books, and he barely flags it: he hands you a war doctrine, then runs it on a negotiation, then runs the identical thing on a seduction. The T'ai Kung's "hollow him out from inside" is the Kama Sutra's go-between is the cult's love-bomb. He treats domination and seduction as the same operation at different scale — the only variable is how many people are in the room and how long you've got.
What snags me is that he never argues for it. He just assumes the reader already knows the bedroom and the battlefield run on one engine, and writes as if pointing it out would be insulting. The whole corpus is built on an unstated isomorphism.
The Live Wire: the first framing is "influence is scale-invariant" — true but flat, every persuasion writer says it. The second framing is the sharp one: the scale-invariance is the tell that none of it is really about the other person. If the exact same move works on an army, a counterparty, and a lover, then the move was never a response to who they are — it's a response to a structure all three share (a want, a fear, a gap). Lung's books read like seduction manuals and war manuals because to him there was never a difference to preserve. The question that won't leave: is that a profound insight about leverage, or is it just what the world looks like to someone who has stopped seeing individual people at all?
Related: Three Treasures Strategy, Kama Sutra as Strategy, T'ai Kung Five Virtues Push/Pull