CONSUMER'S REMORSE? CO-OPTEE'S SHAME?

I think we need to come up with a word to describe the shudder of nauseous guilt you experience upon realizing that you've just been tricked into allowing yourself to be deeply moved or legitimately entertained by... an advertisement. "Shameful Joy" or schadenfreude is something quite different, as are "guilty pleasures".

Oh, and this is today's culprit, in case you were wondering...