How about advertising without the tracking? Advertising not shown specifically to me because of any attributes Google thinks apply to me? Advertising limited to a 5s lead in at the start of the video (today, this video is sponsored by …) and a static banner hidden when going full-screen. Advertising held to high standards, and advertising which can be vetoed by the video's uploader. In short, ethical advertising.

Google can surely figure this out and still turn a profit on Youtube. Greed stops them from doing this.