Many moons ago, I had a boss that could not be wrong. My first day on the job, I pointed out a huge error, he told me that I had no clue, he proceeded, shit was fucked up, it was "my fault", never heard the end of how "right" he was. He was one of those "smart, but really stupid" people. Every error I corrected made me more inaccurate/inefficient. Every idea I shared, he stole, and gloated over. I was there for 6 months, 6 months after I left, out of business, he lost all of his wealth. Blamed everyone, but himself.