This calls to mind a rather bold point I made to the elders at my judicial committee. I told them that they would probably kill me over the apostasy issue if the Society told them to. "The scriptures do say that killing is wrong," the chairman said. My reply was, "Well...maybe not everyone would do it." Besides, I thought, since when does the Bible have the final say? The Bible didn't condemn organ transplants, but people were willing to die over that.
I am sure that orders to engage in violence would cause most ordinaries to wake up. They'd have to be forced into it by the hard-core types. There are plenty who would likely be willing to kill for the organization, I'm sure of that. But as has been said, protecting the Society from legal liability is priority one. So sanctioning murder is not on the table--it'd hurt their pocket books too much and land them in jail.
Just as they've created a prison with no bars, no walls, and no locks, so they have murdered without knives, guns, or bombs. By classifying individuals as non-persons via expulsion, the Society assigns them to what is a mental death. Killing you without a visible scratch is a far more effective method, one that the general population of the religion will overwhelmingly support. Why change tactics when you've got one that works so well? Only if they had nothing left to lose would they consider taking it any further.
-sd-7