Zephyrus Mulciber wanted the Wizarding Government to shove off and allow him to practice the old religion in peace, without threat of being hauled away to Azkaban for the privilege. He wanted to express his devotion to Jupiter, even if that meant bleeding a muggle dry on the night of a full moon. He wanted to smear blood onto the soil in his greenhouses as an offering to the gods for a bountiful harvest, without worrying an Auror will slap him with a citation for practicing his religious freedoms.