Have you actually done any reading about the incidence of sexual abuse in group foster care facilities? It's rampant, both by the adults who work there, and by older children on younger ones. One group facility for boys in my area (the facility was in Norristown, PA), was found to have been allowing older boys to regularly rape younger ones, and further investigation revealed that this had been going on for years, with the full knowledge of the adults in charge, and with many rapees eventually becoming rapists themselves as they got older and were still living there.
One can understand from this information why "FIRE REIGNS DOWN FROM HEAVEN OVER AN ENTIRE REGION" to get rid of the vermin, so a few innocents get fried. The benefit outweighs the loss of innocents.