My people have never been so very reliant on single points of leadership. Matriarchs, Asari who are often closer to a thousand years of age than not, are seen as guides, and advisors, but the old states were representative, or even fully democratic, for generations, and we've maintained a true electronic democracy since before we discovered the mass relays.

The collective voice of our people sets laws, policies, even regulates trade and relations with other races in council space. When we select asari for positions of prominace, such as the council, we chose individuals who are known for patience and wisdom, who are willing to consider the consequences of their choices and actions over centuries, and who promote peace and comprimise between races over violent altercations and arrogant demands.

At least, that is the theory.