I think major brands in particular are wasting a lot of money on ads. For example searching Macbook in google returns an ad for apple.com as the first result an

I think major brands in particular are wasting a lot of money on ads. For example searching Macbook in google returns an ad for apple.com as the first result and the same exact link as the first non promoted link. Why on earth is Apple paying for an ad in this case? It's literally wasted money. I can't imagine that having an ad link above the real link gives them any revenue delta