The Gospel of Mary had been known of, just barely, prior to the discovery of the Nag Hammadi, which has most of the text.
I think it is important to remember the rulers back them.
Augustus and Gaians were now hereditary Emperors of the Roman Empire,
and no Galilean could ever hope to really sway them. The Tetrarchy was, for Judea, now in the hands of Herod IV, the
hereditary (grandson of Herod the Great) ruler, for whom a Galilean
peasant was probably about as important as dirt. The Hebrew Priesthood, hereditary scholars and scribes of what is "good"
and "true." Actually there were two sets of hereditary priests, the
pre-Hasmoneans (often seen as more Hellenistic and servile) and the
Hasmonean (often seen as usurpers by the other group). They,
arguably, coincide with the Sadducees and Pharisees of the NT.
Galilee itself had been conquered, only a couple generations before Jesus, and all the adult males forcibly circumcised and made into Hebrews.