By drawing parallels between organized crime empires and the Vatican, Mario Puzo isn’t trying to shock the reader, he’s revealing continuity and exposing corruption as a structural feature of power and not as a deviation. Rodrigo Borgia becomes the manifestation of corruption, his court - a place that thrives on bribery, coercion and assassination, all cloaked in righteousness. The reader sees the Vatican as a great syndicate with a facade, rivalries and codes.
Mario Puzo portrays the Vatican as the tragic, royal court of the Borgias. He shows us his inspirations for contemporary crime sagas, and portrays the Borgia episode as the origin of crime in Rome, which it is not. Rome was a cesspit of vice, Borgia was just the first among equals here.
Pope Alexander VI - Rodrigo Borgia may be the template from which all of Puzo’s Patriarchs descend. He didn’t introduce corruption to the Vatican, he just improved and tried to perfect the rotten system. Depravity, simony and nepotism were not introduced by Rodrigo Borgia - they were institutional norms that Rodrgio Borgia took to the most efficient extreme.
The moral erosion in the Vatican had been there for decades. By the time Rogrigo Borgia became Pope Alexander VI in 1492, Popes were known to have fathered illegitimate children, positions in the church were openly offered to the highest bidders, and the word ‘nepotism’ was coined around this time based on favours accrued to ‘nephews’ of Cardinals.
Rodrigo Borgia was a veteran of four conclaves, having spent most of his time as Vice Chancellor to the Pope - becoming virtually indispensable on account of his connections, intimate knowledge and visceral cunning. His personal magnetism made him an indispensable diplomat of the Vatican long before he became Pope, and he counted members of the royal families of Eupope among his closest friends and confidants - even becoming godfather to some of their children. Borgia wasn’t a wolf among sheep, he was a wolf among wolves.
Over the centuries, the Borgias have been many things to many people. To Protestant reformers they were the symbols of Catholic decadence, to military & political historians like Macheiavelli they were the model of what powerful people needed to be; to artists like Leonardo da Vinci they were patrons and symbols. To Mario Puzo they were a timeless lesson in power.