Emily Colette Wilkinson notes the rise of ethical blood suckers:
Our vegetarian vampires, I think, are afflicted with the same crises of conscience that we are as first-world twenty-first century humans. We eat too much, we shop too much, we use too much fuel, water, land; we mistreat the animals on which we depend for food and the other peoples whose labor produces for us the cheap abundant goods we have all grown so used to. The vampire’s insatiable hunger for blood mirrors our insatiable hungers for food, wealth, property, and possessions. Contemporary vampire fiction mirrors our collective anxiety about our need for self-discipline and a return to a more humane approach to our fellow beings: Now, the vampire, the most appetitive and unrepentantly murderous of our culture’s mythic archetypes, restrains himself in our popular fiction. He has become a “vegetarian” of sorts, the vampire version of a Whole Foods shopper, who prefers humanely raised meat, free range eggs, sustainably farmed produce. From the shimmering pâleur of the vampire radiates something new and hardly otherworldly: an aura of white liberal guilt.