The add says something like: Don't steal the music, listen to spotify, and every time you listen to a favorite artist, you earn money for the artist.
The argument appeals to your ethics, in the Buddhist's case, the ten precepts. Not to take the not given, the second precept. The flip side virtue is generosity. This ad appeals to my ethical sense. Usually ads appeal to the lower nature, desire for status, appealing women, ease in life. This ad essentially says you will feel better if you stop stealing. I like it.