Good perspective - I think Dr. Deming would approve considering a mistake in a process as a need for improvement.
Two unemployed employees, one was a failure the other a total success with mistake free work.
How does a boss tell the difference? He does not. Bosses are ignorant.
High success in a job is punished.
Failure is punished.
Better is to adopt a herd mentality somewhat. Bosses are extremely stupid. You are lucky to have one competent boss your entire life. Learn the art of politics.