The ending scene where Oskar starts to view items in his possession as people he could've saved is a really sad scene, and you start to think about how much he should've or could have given up just to save a few more lives. Oskar was considered a very kind man because he had saved so many Jewish  people, but he could have saved lives in exchanges for mere objects. Does this outweigh his saving of lives? How many people need to be saved or wealth spent makes what a person has done truly heroic? Oskar chose to hire Jews at first simply because they were cheaper. What about other cultural groups targeted by the Nazis? Should he have tried to save them? Besides, Oskar should never have been put in that situation, but there was little he could do to stop his neighbors from gathering up Jews and putting them in concentration camps. Hiding the Jews in his factory was extremely risky and brave, because turning against the the Nazi party and the idea of German nationalism would get him killed by the Germans. However, the Jews that he aided ended up helping clear his name after the allies achieve victory in Europe.