Some activists for animal rights “reject any compromises with welfare-oriented groups that aim to secure incremental improvements — such as larger cages — for animals raised and slaughtered in horrific circumstances.” They think that working for more humane treatment of animals in an unjust institution like factory farming violates their moral principle that it’s wrong to use animals for food in the first place. Bob Fischer and James McWilliams question whether it makes sense to put moral principle ahead of preventing suffering.