Both the bankers AND the janitors, as well as the teachers and the bakers and the shoemakers and the tailors and the blacksmiths and the cantors and the rabbis and the butchers and the textile workers and the printers and the factory owners and the water carriers and the infants and the toddlers and their parents and their grandparents and their greatgrandparents were murdered. No one was more likely than anyone else to extricate himself from the mass hell that the Nazis set in motion. You seem to think that survival during the Holocaust was a function of intelligence and ingenuity. Your comment is glib and woefully uninformed. You need to read much more about the Holocaust.
I am sorry to sound "glib" but I do not believe that. I know for a fact that Jews from all levels of society were captured and killed and a host of other horrific crimes. However, I cannot believe for one second that 50% of those killed were below average intelligence and 50% were above. It simply defies logic and reason as distasteful as it may be to discuss.
In addition, survival during the holocaust was certainly less dependent upon affluence as escape prior to the holocaust would have been. If even 2 in 10 bankers managed to pay their way out before the killings commenced, they would have doubled the rate for other survivors. When 90% of a population is killed even a tiny difference can make a large percentage change.