2. Don't pretend you don't get something for your attention. To be effective, advertising must keep you at least mildly amused for some amount of time. Take for example, GoPro or Red Bull's ads. Not familiar with them? Go ahead and google them. I'll wait. Aaah! Almost got you! See 1. Anywhoo, some guy with their logos plastered all over him doing some amazing wingsuit stunt is both reasonably effective advertising and pretty damn entertaining. Clearly those companies think it's effective enough to keep funding it. Hell, I'd say both companies are probably better media companies than they are at making their respective products.
I predict that "Happy Birthday" will still be under copyright at the time.