On the other hand, Matthew was there from the very beginning of Jesus' ministry and Mark in all probability was only there at the very end (and then as a startled observer), so who would know better? If Judas was a zealot, then he was a humanist (i.e. relying on human solutions rather than on God), (mis)using religion only to further his political goals. Just as those who perpetrated the acts mentioned in the last verse of the song misused religion to further their worldly goals - lust for wealth and power. Therefore they are closer to Judas than to Jesus. This song and the attached commentaries certainly provide food for thought.