The issue here is that these big algorythms are actually tuned to collect and hold and direct attention of users as first priority. Not to hand out accurate info, advice, wisdom, world views etc. I think It is easy to forget that " free " on the net actually means "you pay us with your valuable attention".
This is really interesting stuff... good book that I am reading (too early to review it sorry) http://cliftonchadwick.wordpress.com/2011/01/07/is-the-internet-changing-the-way-you-think-book-review/
The person who's taking you to lunch has no intention of paying.