These were adults who were supporting and profiting from the Nazis.
They also stole the assets of the Jews they rounded up, and the Jews who escaped voluntarily in the 1930s did so leaving all their assets behind to be collected by the Nazis. I worked in Germany in a bank where the personnel office was a building that once had housed my great great uncle’s business. I never learned how the bank came to own it, but he left Germany in 1936 penniless.