It is known that the Rockefellers supported Hitler more than they did the allies during the war. Given that Hitler was working for the International Bankers, he was not an enemy of the elite, he was performing an important role.
Many years ago, I watched a BBC documentary which looked into stories that Hitler had been living in South America after the war. There were many local witnesses who said they had seen him, whole hotel floors had been at times been sectioned off for the elite Nazis (including Hitler) to have meetings. Some people in the hotels were needed to serve the people, they were interviewed and confirmed that Hitler really was out there, alive and well.
After the war it would have been important for people to believe that Hitler was dead, also he had done a good job for the Bankers so they were going to look after him.
My wife's family have a bakery in Argentina, her grandmother said that in the past there were lots of senior Nazis in the area, some visited the bakery.