This is the evil our college priests talked about in Catholic philosophy classes. 
Observe the tenet: one cannot use ignoble means to achieve ones goals or any goals. AKA -- the ends do not justify the means. 
Yet, the last two popes and nearly all of the American Catholic prelates use many great evils in the process of achieving their goals of eradicating Communism, Socialism and all abortions. 
VERY strange. nicht wahr???