This post has too many comments to show them all at once! Newcomers, please proceed in an orderly fashion to the newest welcome thread.
That's one useful way to make a distinction! And, honestly, probably the one I lean toward. That's probably the way I'd use the words, but even so I'm trying to figure out whether there's a sensible and coherent way to call a persuasion technique unethical as a reflection on the technique, rather than solely the consequences.
I've thought about it another way - if a particular technique is far easier (and more likely) to be used in a way that reduces utility than it is to use in a positive way, society should be wary of it, and perhaps call it an unethical practice. I'm thinking of some alleged pick-up artist techniques that are based on lowering a woman's self-esteem and sense of self-worth. (Disclaimer: this is second or third-hand information about PUA, so I could be misrepresenting it. Regardless of whether it's practiced by PUA, the hypothetical holds.)
I'm trying to figure out whether there's a sensible and coherent way to call a persuasion technique unethical as a reflection on the technique, rather than solely the consequences.
The first step might be to back up and see whether there's a perfectly coherent way to distinguish among persuasion techniques, in case that becomes important.
Sure, there are sensible ways to distinguish among them. But if you had a good idea of what your subject's matter was like, and a good idea of how you would want it to be, and you had sufficient power, you could talk sof...