How does Mike Eden use his occupation to help others in the novel, Marjorie Morningstar?

Mike Eden owns his own chemical company and is actively involved with an anti-Nazi organization. He uses his business associates in Germany to complete errands for the organization in addition to rescuing Jewish families, getting them and their possessions out of Germany, convinced that Hitler's ultimate goal is complete destruction of the Jewish race. He sees himself as on a mission from God, for perhaps, among the families he rescues, there is a child who is to become a major leader of the Jews or in some other way contribute significantly to the human race.