Christianity definitely had it's influence from Greek philosophy and Platonism especially. I read Gregory of Nyssa's Life of Moses not too long ago and in that book he even borrows Plato's tripartite soul and applies it to the story of the Exodus. As far as cucking Roman power, pick up a Bible and read Romans 13. That's the most prominent of the Apostles who wrote the vast majority of the New Testament telling Christians living in Rome to be subject to Roman authority and not to start any uprisings or cause any trouble. Even with Jesus' crucification, the Romans didn't want to kill Him, but they were pressured by the Jews. Jesus didn't pose a threat to Roman power, He posed a threat to the corrupt religious order of the Jews at the time. The Romans basically looked at it as the Jews having a personal problem. Nero only persecuted early Christians because they were a small, powerless group that he knew he could blame his own poor leadership abilities on, not because he was worried they would overthrow the empire.