To some degree, unfortunately medical errors are inevitable. That they should be a leading cause of death, however (yes, really, look up the stats). A bit scarier, and certainly explaining much of the Covid-19 drama, is the fact that (for USA) as long as drugs, devices and other products are classed "emergency use approval" and/or during a declared emergency, the entire medical system, from manufacturer down to the attendant serving the patient, are totally indemnified from any liability. Complete, total protection against lawsuits. This fact alone when coupled with the free money from government incentives and recommended modes of treatment, make it obvious why hospital administrators choose certain treatments over others.