Let me tell you about something I have been working on. I have been following the stories of two French priests who contributed fresh outlooks to Vatican II, going on then to being rewarded by being made cardinals at the end of the council.
Lubac, a Jesuit was eight years older than Congar,who was a Dominican; and they only got to know each other later on. What eventually brought them together was that they both felt that anything the Church did later on was wrong if it conflicted with the way things were done at the time of the Apostles.
As you know, World War II lasted from 1939 to 1945. During those years Father Henri de Lubac was publishing an underground newspaper staying on the run from the Gestapo that caught and killed many of his companions; Congar, an Army chaplain, managed to just stay alive through six years in a Nazi prison camp.
Two years after the war, they both got in trouble for something they wrote. Lubac's book The Supernatural criticized the Theology textbooks followed in Rome. Congar's True and False Church Reform called for a reform of the ways some of our leaders lived.
Both men were banished from writing or teaching from 1950 to 1989 when Pope John XXIII made them special theologians to Vatican II.