Does that not then whittle it down to a small group making all the decisions?
It's likely to be a much larger group than currently decides what's "worthy" of the "trending page".
I know there are a lot of people on HIVE from very poor countries who would likely be more than happy to review posts for the jury rewards.
I've always been particularly interested in finding heavily downvoted posts and reviewing cases might even be more interesting than reading the "trending page".