Rome did not crucify people because they preached private, religious experience. In fact, Rome was quite tolerant of a broad range of religious beliefs, religious syncretism, and practices. They also didn’t crucify people because they were doing good to others. They used crucifixion to send a message, “This is what will happen to you if you step out of line/mess with us.”
Jesus was perceived as a threat to the social order in Judea. He was a threat to the temple (see his cleansing of it), its power structure, and the national/religious authorities in place, that colluded with Rome to keep order. He acted non violently, yet provocatively, organizing a movement around himself whose symbolism, twelve apostles and seventy two disciples, was the announcement of a newly constituted Israel. He made claims of being Messiah, verbal and non-verbal, that showed up on the Roman radar, and were used effectively by his accusers to get him executed.
The deck was stacked politically against him; would be messiahs were not looked upon kindly in Roman controlled Judea. They were perceived and dealt with as threats. Jesus was treated no differently, and his claims of kingship flew in the face of the kingship of Caesar, intentionally or not. In fact, the subsequent gospel proclamation of Jesus is Lord, had its own built in subversive subtext, even if also unintentional…Caesar was not. That was right in line with the OT proclamations of YHWH as king of the world through his anointed servant king/son of man figure, (see Isa. 40-66, Daniel 7, and Ps. 2) over against the pagan gods and pagan rulers.
To portray Jesus and the gospel message as having nothing to say to the religious and political powers is to privatize the gospel, and to make it only about individual spirituality and experience in a way that discounts the broader implications of what the gospel of the kingdom is really all about. If we believe this gospel, then we have something to say about injustice, oppression, and the corruption and abuse of power that causes such, in whatever setting we may find ourselves in the world, ecclesial or more broadly societal. The prophets did, Jesus did, and so should we.