I don't want a "smart personal assistant" who is inherently corrupt, i.e. driven by the desire to sell ads and not to assist me in my best interest. Hopefully, the future of search will be more decentralized and driven by individuals' needs.
I think you fail to explain why one precludes the other. (WRGT ads vs a user's best interest). And I also think that you're overly focused on the monetization aspect of current search technology. Which neither search in general nor Google in particular are tightly coupled to. It's simply the best practical monetization method at the present time.
I do not think, showing me ads is a problem for me when I am using a free service. It is finally my choice to click them or not...