Do police detectives sometimes do good work and save lives by getting to the bottom of criminal activity in spite of obstacles and deliberate attempts to cover up wrong doing? Yes.
Are there good people who struggle with personal hardships to do the right thing? Yes.
There are many lessons that viewers of The Good Nurse, a movie on Netflix, can take away from this movie based on real life events where a nurse killed as many as 400 patients in 9 or more hospitals.
Rather than investigate Charles Cullen's murderous behavior, hospital after hospital, minimizing their risk exposure to liability for their employee's engagement in activities that led to patient's deaths while under their care, these hospitals just quietly terminated nurse Cullen's employment and he moving on to continue the activity in another hospital.
At the end of the movie when nurse Cullen is asked why he killed these patients he simply says, "because nobody stopped me."