Many of the trolley problems use the term “madman,” and there have been many throughout history. They disrupt peaceful society and take lives of the good and the bad. It matters not to them until they are cornered by special forces and turn to jello.
In my lifetime there have been many—Chairman Mao, Pol Pot, Sadam, Ho Chi Minh, the list goes on, with Hitler typically topping the list of evil (before my lifetime) It is natural to feel anger at such individuals—men of pure, egotistical power without regard for any other points of view, especially “lesser” ways of being.
There are those that consider this in an evolutionary pattern, such as the recipients of indigenous genocide are failed ways of being human, that they had their time. Now we must live in the “real world” of technology and embrace its conformity, whether you like it or not, you are. —”Societies have ended and their members died in droves because they didn’t have the knowledge we know today,” ie; they were not as intelligent or advanced as we are. Looking at some of the structures they left behind, there’s a good chance many of them died off because they were smarter than we are. We seem to be headed that way too.
As for nature and the madman, Hitler and his ilk are every bit a natural phenomenon—as is a tsunami. And the followers of such are just as much a problem