The vast majority of Christians do not behave differently because they do not think differently, and they do not think differently because we have never trained them, equipped them, or held them accountable to do so.
With all do respect for both Carl Kirby and George Barna. . . If man could make Christians by any means the atoning death of Jesus on the cross was unnessesary.
The truth is very simple. Those who can watch this stuff without conviction are not of Him. Those who are of Him don't continue to eat spiritual dog food.
Churches today cannot afford to and will not hold anyone accountable for their actions. The limit of it's authority in this respect is to remove them from the church and that by shear numbers and loss of revenue would end Christianity as we know it today.