There is a class of prediction markets that are useful and seem immune to most of these problems : play money prediction markets. I've been enjoying them for years; I feel they provide a useful service to understand what is going on in the world, and they don't seem to provide the perverse incentives that we are seeing here. Oh, and they seem to work just as well.
No there is not.
That's as damaging a statement as "soft" drugs or "problem" gambling.
Statements usured by corporate PR to set up a fake middle ground and delegate responsibility to the consumer for any "bad" behaviour.