"Why do we write about the Knights of Columbus?"
The universal language of Big Money is corruption, the anti-god that  bedevils theology/ history. As for Rome, it happened in the time of the Crusades with the Knights Templar, and thereafter, with the sale of indulgences across Europe to build the monument of monuments, St. Peter's Basilica in Rome. That lesson of history lives with us in the present time. The corruption story of money in Rome, in High Power and High Church bedevils faith in our time.
Soldiering for Church has been the history of Knights, the armies of Church Militant. Even St Ignatius of Loyola picked up on and promoted Church soldiering and violence in the global Colonial enterprises of Church.
Pope Francis, like St. Francis, means to speak a different language in Church, but the contrary winds  of Church History are strong in the present time. Who will end up winning the culture war, the message of St. Ignatius or St. Francis? The question is personal to each of us.?