If you saw a 190" buck laying in the ditch that had rotten meat i suppose you would just drive by and leave the rack!
YES I would. Why would I possibly want a road kill section on my wall? Only thing ever to go on my wall would be a memory of a special hunt - NOT a memory of crawling thru a ditch to hack off a smelly head!
Only reason I could see was if someone used them for craft items like knife handle etc.