But Draco was not interseted in draining the blood of inocent victims, rather than take blood, he took to stealing pretty dreses etc. that once belonged to little girls. But left behind would be tons of gold and jewels, so that the dresses he stole could be easily replaced ten times over.
Since the royal teasurey was never actually being used for anything, Draco took it upon himself to make use of the gold and jewels, without even Dracula being aware of it, though Draco hoped to be caught, because in truth, he was different, not only tha,t his father told hhim of what was expected of him.
Draco did not like what he was told, he loved the sort of things one would not expect a Vampire to like, but he did. Draco was possibly the very first Sissy Vampire and he needed a way to be free from the life chosen for him by his father.