I have ... it seems you haven't.
Seriously, nowhere does it even suggest in the dictionary that influence is anything about excluding force even generally. Again, you are using PHYSICAL force to remove ALL types. Seriously, not all force is a fucking threat "Do this or I'll harm you" or a bride "do this, and I'll reward you." If you are guiding someone to do something they are not willing to do on their one ... that's forcing them. And nothing in the dictionary fucking agrees with you. The dictionary doesn't disagree with you either as it doesn't specifically mention force outside of noun form in the definition of influence.
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If they are undercover, say in a drug ring, and the "boys" get him a prostitute ... he is legally allowed to have sex with them, before, in order to maintain cover.