A perfect search would show the pages that the ad points to as the first organic results if they were, in fact, the most relevant.

Are you seriously claiming that the ideal search engine when given "Philly events" should guess which event in Philly you actually want tickets for and send you to that event's webpage?

I didn't say that you'd enter a text search. I was speaking to the goals of the search not the specific modality. If Google were able to fulfill the goals of the searcher (as they claim to want to) then ads would be unnecessary.

If they partnered with Facebook, it wouldn't be too difficult.