Butchers often use chainmail butchers gloves when cutting meat from bones because of the protection they offer. Knives in the butchering and food processing industry are much sharper and much larger than kitchen knives, so the extra protection chainmail butchers gloves provided is necessary to ensure safety. Many in the food processing industry also wear chainmail butchers gloves while shucking oysters (removing oysters from their shells) for the same reason.
chainmail butchers gloves are also used a lot in textile work and sheet metal cutting because of the use of sharp blades and the inherent dangers they pose. Basically, if you are dealing with sharp blades on a daily basis, you could probably benefit from using a pair of chainmail gloves.