"I'm not sure, but I think that BL was created inside the Belisarius by Tolwyn, so he could stop them from taking over the government. Instead he used them against the BW."
In The Price of Freedom, Tolywn says, "I have heard that some of you have had qualms about delivering the bio-convergence canisters or have expressed concerns about the Telamon operation." Later he says, "I did not order that from any desire to inflict suffering on the people of Telamon." And later, Tolyn steeples his fingers under his nose a moment, as though thinking. "You may cry for the ones who must be neutralized, just as I do ..."
I think Tolywn said all that to inspire some type of compassion in his troops to help maintain discipline. If all compassion was eliminated, his troops might become too war-like and might try to overthrow him.