I work as a pharmacy tech. My experiences so far, as well as the opinions of ALL those involved in the field of patient advocacy healthcare, regarding drug adverts (and the effects thereof on the layman consumer/patient) are strongly viewed in the negative/non-progressive.
Personally I feel that having any form of subliminal ambiance [If not intended as such, then the facts {sorry, no references, and I would hope none are needed} of ones opinions changing correlating with ambiance is evidence in retrospect to therefore be a base for a systematic approach to eliminate the evil (I repeat the term, EVIL) practice] (soothing music, utopic-like positive human behavior, etc.) while portraying and informing a public of a factual mechanism that has little (read: approaching zero) to do with previous mentioned ambiance.
A response to the obvious (therefore not typed) counter argument: In an "free economy" driven world a company can not survive if it "wastes" money on advertisement (and certainly not an entire industry if the practice has become a standard, as this practice is) simply because it "wants to". It would be bought out, sold, crushed or whatever economic term you wish to use involving market evolution. Therefore the reason to use this practice simply on a whim does not cut the butter, so to speak. A reason MUST (read: probability approaching infinity) exist.
Of course its retarded. But who here didn't know that?