I guess you aren't familiar with J.T. Chick's attacks in his comic book tracts on the Catholic church, particularly, the Jesuits.
AJA, I had never heard of the Jesuits until I was exposed to J.T. Chick's literature.
About as concise yet complete a history of the Jesuit branch of the RCC is found on Wikipedia.
https://en.m.wikipedia.org/wiki/Jesuits
Another article is found on Britannica.com:
https://www.britannica.com/topic/Jesuits
Jesuits aren't a denomination within the RCC but more like a mission board. They remain under the authority of the Papacy however, they have been known to have their own take on theological or social issues which sometimes put them at odds with the Pope.
If the differing philosophies idea holds any validity, that could perhaps answer why Francis has made such a radical departures from historic RCC positions.
I'm not a scholar on RCC issues but I definitely remember news reports, many of them critical, about Francis' predecessor, Benedict XVI who was portrayed as an old school conservative.