Why should all those people with a really good idea for the world struggle so hard to get their idea out there and into action. Some of them can't even ever find a way to get their idea out there. Maybe most people who think they have a good idea don't but that doesn't mean an organization that recognizes those ideas that turn out to be useful as such can't exist. One possible way that organization could work could be looking at How to speed up research Wiki and recognizing when an idea is useful.
In addition to that, that organization should also be helping spread awareness of issues in our world that really need attention. It's the lack of such an organization that made people need to protest in order to raise awareness of the oil pipe line issue. How can we be so sure that for all issues that need awareness spread, somebody's going to find a way to start a protest group to raise awareness of it?