But that's what we're talking about here, I believe. As with anything, there are both
good and
bad ideas. Think tanks are paid to come up with
good ideas; since ideas are a market for lemons (asymmetric information about their worth), the thinktank then signals that the ideas are good by providing accompanying research. The thinktank could just tell you their ideas and keep the research to themselves, but you probably wouldn't believe them.
Now, since 90% of the output of all cretative processes is crap, and that includes ideas; and since ideas experience network effects where the best ideas will gain supporters who will exponentially increase the "execution" multiplier for the idea, while the long tail of ideas will never get executed on at all; it becomes pretty obvious that the median idea won't have any market value whatsoever. Talking about "ideas" as if they all had the same worth will then lead you to believe that, since the median idea isn't worth much, no idea can be.