I know one other profession that acts similarly to cops in that they always try to bury their mistakes.(literally) Doctors. Usually they don't take responsibility for grossly negligent mistakes, because they all cover their asses.
I completely disagree. For one thing US doctors get rigorous ethical training in medical school where the emphasis is on getting things right, not just being right. They are regularly told to squeal on each other (ie incapacitated doctor, incompetent doctor, unethical doctor, etc) and are regularly encouraged to stand up for our ethical professional beliefs. In addition, if a physician's actions are objected to by another physician (for example, imagine if one doctor wanted to take a 97 year old demented man for a high risk surgery, but another doctor objected and said its unreasonable), that objection is taken extremely seriously and often is enough by itself to seek either further help from other physicians or to just do what the objectioner wants.
In addition regarding lawsuits, things have changed dramatically in the last 20 years or so. In the past, doctor's were more or less encouraged not to admit fault as that could be damaging in court. However, this has changed and now doctors are strongly encouraged to admit fault, to have full disclosure of errors to patient's and families, and to do so EARLY on, almost immediately once the error has occurred.
These changes essentially came from
1)a big study by the university of michigan showing that a policy of open discussion of fault, apologies, and early attempts to settle were much more cost effective to the hospital and gave much more patient satisfaction than a policy of attempting to with hold information from a wounded family that would ultimately wind up suing you. The reasons people sue are a lack of communication, a lack of a feeling of respect between the doctor and the patient, and the patient's want to prevent what they went through from ever happening to anyone else. Physicians nowadays when error occurs disclose, disclose fully how the error occurred, and discuss with patients the steps that are being taken to ensure this never happens again and more often than not the case is settled without any lawyers being involved.
2)Legislation changes where apologizing for an error to a patient is not admissible in court and in general doesn't have a negative outcome on that physician's case
Finally, you want to know what is a very common side role of physician's, especially academic doctors? They review cases for negligence by other doctors and will testify against them. They do this for academic and professional interest to ensure that physicians are behaving properly and ethically in the community. Its easy for us to judge police actions. Its kind of hard to judge whether a doctor should have given epinephrine vs dopamine.
Every now and then you hear about some asshat doctor who was egregiously doing something wrong for greed or just out of plain stupidity but its rare and they get absolutely crucified by other physicians. Its nowhere even close to what is daily on the news about police abuse of power and failure to self regulate.