Which argument for religious reform might be convincing to a priest, pope, or king?

Having studied the history of the Protestant Reformation, and the creation of the Anglican Church, we see that there was a religious reformation in the Church of England to meet their personal interests. The Catholic Church, in the person of its priests and popes, should follow the doctrines from the beginnings of the Church. Some doctrines and commandments tried to make people establish a certain order in life. Any extra additions to the scriptures were better for control purposes.

Nowadays, society has changed, and for the protection of the faith of believers, the Church ends up trying to adjust old precretes with the social reality of today, that ends up generating a little religious reform.