There is an interesting parallel here with the deterioration of regulatory oversight at Boeing that seems likely to have contributed to recent issues with the 737 Max. Similar to how the FDA was only visiting these foreign drug manufacturing operations once ever 11 years on average, the FAA was also resource constrained, to the point that Boeing was responsible for most of it's own oversight.
Maybe the story is just that at a certain point every company becomes rotten in the pursuit of profits (although that seems a contrived conclusion). A better analysis would maybe be what made these companies act in similar ways, skirting regulation at the cost of safety.