If people must eat animal carcasses, roadkill is a superior option to the neatly shrink-wrapped plastic packages of meat in the supermarket.
Eating roadkill is healthier for the consumer than meat laden with antibiotics, hormones, and growth stimulants, as most meat is today. It is also more humane in that animals killed on the road were not castrated, dehorned, or debeaked without anesthesia, did not suffer the trauma and misery of transportation in a crowded truck in all weather extremes, and did not hear the screams and smell the fear of the animals ahead of them on the slaughter line. Perhaps the animals never knew what hit them.
Of course, people who want to kick the meat habit can get a free vegetarian starter kit