This paper studies how to raise and newly recruit competent politicians with civic virtues, who advocate the formation of a political system that is based on the principle that all people are brothers and sisters, the ideal political system proposed in the principle of mutual prosperity. First, the paper addresses political recruitment, explaining how the classic elite theory and the power elite theory have traditionally argued that the existing political structure cannot be changed while the pluralist elite theory points out that such political structure is the fundamental limit of democracy, and that a democratic representative system can only be achieved when representatives from all diversities amongst the people are recruited as the political elites. Second, the paper studies the founding background and educational system of the Matsushita Institute of Government and Management model, an organization dedicated to the training of politicians with the capacity to change the recruitment system of politicians, as a means to realize the political ideal of the principle of mutual prosperity. The paper comes to the conclusion that long-term research, substantial efforts, securing safe funds, field-centered studies, etc. are key components in establishing an organization training politicians for the realization of mutual prosperity.