The role of "nature magic" priests and wizards in the real world has never been "protector of nature" but rather "protection from nature". I suggest if you make vegan, "living in peaceful bliss with nature" Druids that you rename the Profession to Hippie and leave the Druid name for the fearsome human-sacrificing cultist of pulp adventure.
Historically, the most revered animal spirits are often those of the beasts the culture hunts and obtains food and clothing from. When the survival of your people depends on an animal, it gives that animal considerable importance in your world view.