I,m sure a hard working lurcher like a hard working man would bear the scars to show he,s "been there"
If we leave aside foxing, which isn't traditionally a lurchers work anyway, then many hard working dogs get through life with few or no scars and some useless dogs could skin themselves going through a farm gate.
Feet are the same. Some dogs reach old age with almost perfect looking feet while others have feet full of crocked and let up toes before they're four.