@marshray This seems likely. But suboptimal Nash equilibria seem to have been making a lot of the important decisions already; I'm thinking about the MAD arms race as one major example, but there are many others.
Artificial superintelligence (which is a precondition for the scenario I think you're envisioning) seems likely to happen in the next few years, unless the current approach to AI fails. But I don't think that we can predict what will happen after that. Probably mostly things we can't imagine.