Unfortunately, we find many of the above motivations even in Jewish communal service. There is recognition of the need for the diversity, and a person works on a specific project, looking to fulfill his unique mission, and contribute his unique talents and perspective to the totality of the Jewish people. This is because our forefathers, Avraham, Yitzchak and Yakov, are considered fathers of the entire community, and not fathers of individuals. Every individual has his or her own father. This leads to their assurance of eternity.
Individuals are ephemeral and transitory.
They are subject to change and variation. Even if the members of the community pass on, the accomplishments of that community remain.