Where all German and Austrian women members of SS and Wermacht ?

I heard that a lot of German and Austrian woman and girls serviced as guards in Nazi German concentration death camps during World War 2 like: Auschwitz, Buchenwald, Majdanek, Treblinka, Ravensbruck, dachau, Mauthausen etc. Why such innocent cretaures killed Jewish, Polish, Dutch, French, Russian, British Czech and other people? What happend to that women after the war?