Natural selection is not a very efficient system because it works by elimination. You get to goodness by eliminating the bad. The problem is, you don't know what good is. You have to let a system operate and find itself. That kind of modeling is counterintuitive to the way in which humans generally try to run their institutions.
Similar patterns hold for entire industries through history.
The world is too complex to be in continuous flux in all its parts. Lester Thurow, in his book The Future of Capitalism , identifies punctuated equilibrium as one of the three or four notions in the sciences that work well to describe the history of economic change. His message is that, at the very least, we have to be sensitive to rapid shifts in the business and political environment. Yes, bacteria still dominate the world, as they always will. Diversity gives you resiliency against catastrophe.