"Luther was right!" in so many ways.  The corrupt practices of his day, such as the sale of indulgences, simony and more, evoked a conscientious response, as do current legalisms.  Restriction of Eucharist to those who acknowledge the Pope, barring others who love the Lord and believe in His presence in Holy Communion; mandatory celibacy for economic reasons that can issue in tragedy for those who have given their lives to God's service; denial of the reality of diversity in sexual orientation and gender identity as well as of women's equal call to discipleship; setting barriers to sacraments for those whose marriages have failed but are now blessed with real love in new unions, come to mind. As we pray for Christian unity we might do well to notice that Anglicans, Episcopalians, Methodists, Lutherans et al share liturgy and ministry and communion, thus creating unity, while Romans continue to exclude 'others' due to humanly devised law, contrary to the teaching and witness of Jesus.