Amidst the economic crisis, Hoover was definitively crushed by Democratic nominee Franklin D. Roosevelt in the 1932 presidential election. In the wake of leaving office, Hoover appreciated perhaps the longest retirement of any previous president, and he wrote various works in resulting many years. Hoover turned out to be progressively traditionalist in this time, and he unequivocally criticized Roosevelt's foreign policy and New Democratic Deal. During the 1940s and 1950s, Hoover's public standing was somewhat restored by serving in different tasks for Presidents Harry S. Truman and Dwight D. Eisenhower, including as executive of the Hoover Commission.
The part where Zaroff tried to include Rainsford in his sick hunting game would be the best portray Zaroff as Rainsford's foil i think. Beside that, they both actually are very similar with one another