I would like to see examples of this effect in advertising
The naive advertising of Kermit the Frog (Ocean Breeze soap will get you clean!) Is rarely as effective as showing successfully happy people, even if they aren't using the product!
Really the Kuleshov effect is so pervasive in visual media that we don't think of it as an effect, just as the way things are. It would be like trying to imagine living without object permanance.