Professional self-conception and self-defense, so valuable in ordinary times, become a disadvantage in revolutionary ones, because professionals are always concerned with threats to the profession. In most cases, those threats are also threats to society; we do not want to see a relaxing of standards for becoming a surgeon or a pilot. But in some cases the change that threatens the profession benefits society, as did the spread of the printing press; even in these situations the professionals can be relied on to care more about self-defense than about progress. What was once a service has become a bottleneck.
Clay Shirky, Here Comes Everybody: The Power of Organizing Without Organizations (New York & London: Penguin Books, 2008), 69.