Google doesn't exist in a vacuum. It's not written in the stars that Google must succeed. If Google's business model doesn't meet web users expectations then it's perfectly alright for Google to fail as a business. Businesses fail all the time.

Google is not special or different. Google can adapt or die.

Remember also that as Google has grown and captured more of the available attention and advertising dollars, other businesses that rely on attention and advertising such as free-to-air TV or print media have contracted and even failed. Google has shed no tears for them and, correspondingly, there's no need to shed tears for Google.