Sybok was in the wrong, yes, but he was more misguided than consciously evil. He didn't see his quest as a "scheme," but as an honest search for God, and he thought he was doing people a favor by endowing them with God's blessing. True, he didn't exactly respect the consent of those he converted, but neither have a lot of religious proselytizers and zealots over the course of history -- people who believed that they had to bring people salvation by whatever means necessary and that it was for the converts' own good in the long run.