Within the ideology of monarchy, there is oppression due to dictatorship, autocracy, and there is no commitment to the people or God. The Islamic system rose up against the ideology of a monarchy.
Welayat is the divine government by which there is no sign of egoism, monarchy, and despotism
We are proud and grateful to God that this was carried out in our time by one of His most virtuous servants; that is, Welayat was realized. Welayat is the divine government by which there is no sign of egoism, monarchy, and despotism: if these features exist in it, it is no longer Welayat. The difference between a divine and non-divine government, and their commitments, is that in divine commitments, the commitment is inherent. If someone who takes over a responsibility is not qualified for that position, he is systematically dismissed. -- This is extremely important. The foundation of divine welayat is complete compliance to God’s will: this is the exact opposite of material monarchs and human governments.
What exist in human governments, including signs of authority, monarchy, domination, coercion, egoism, the opposite of these exist in the divine government; its greatest manifestation being Imam Ali (A.S.) (Source: Khamenei.ir).