He is rather astute at it too, but the benefit of this is that Voldemort understands that those running the ministry need to keep their hands a little cleaner than most. He required less and less depravity from Draco as he began working with foreign administrations, and he was able to use diplomacy to circumvent bloodshed - you must have noticed that we took France, Germany, and Spain with nearly no effort. Draco convinced them to acquiesce to the surface demands, and the three countries now have the most substantial underground resistance, supported in secret by their governments." 