An essay well worth reading, this one is written by Lt. Col. Dave Grossman. Dr Grossman talks about those people who go through life with their heads buried in the sand, those who would prey upon the first group, and those who would stand up to the second and protect the first. Very interesting analysis.
https://www.policeone.com/police-heroes/articles/1709289-Book-Excerpt-On-Sheep-Wolves-and-Sheepdogs/