It seems to me that Wilson ought to have illustrated the Cosmic Schmuck principle with an example or two of when he himself was a Cosmic Schmuck. It would not have been too damaging to his reputation, I would think, to admit that his criticism of Bob Dylan, for example, was perhaps not the whole story. One of most affecting features of Kahneman's book is the examples he gives of times when he was wrong. For example, he once embarked with several other scholars on a textbook for Israeli schools on how to make good decisions. They discovered after they had begun work on the book that writing a textbook often takes several years. They should have abandoned the textbook at that point, but they persisted and finally completed it -- after several years. By that time, Israeli education officials had lost interest in the book.
Rather than simply insisting that everyone has should give an example of when they were mistaken, I will give an instance of when I was very wrong. After 9-11, I, in common with many other Americans, because so angry at the slaughter of so many Americans that I was ready to hit back. I supported the war in Afghanistan (which doesn't seem totally irrational to me even know -- I didn't know we'd occupy the country for more than 10 years) and even supported the war in Iraq. Much of my politics since then essentially has been an expression of remorse for my Schmuckiness.
And didn't you like the moment in Nixon in China when Richard Nixon sings, "I was wrong"?