On 30 January 1933 the National Socialist party led by Hitler came to power in Germany and Nazi policies began to have a major impact on the German Mathematical Society and its members. Hamel was a leading member of the German Mathematical Society and was much involved with the political moves which went on in that Society.
Sa 30 Enero 1933 ng National Socialist party na humantong sa pamamagitan ng Hitler ang dumating sa kapangyarihan sa Alemanya at Nasi patakaran ay nagsimulang magkaroon ng malaking epekto sa German matematiko Lipunan at mga kasapi nito. Hamel ay isang nangungunang kasapi ng German matematiko Lipunan at marami ay kasangkot sa pampulitikang galaw na nagpunta sa sa na Lipunan.