When it's well done it's used for shoe soles.
Is a steak still a steak when it's cooked well-done?
You NEVER cook a steak well done. At that point, it's just a piece of meat.
Consider first the transcendental nature of beef...
So yes---it retains its true nature in the cooking process.
However, to add the specific difference: It is now also "inedible."
Air is still air even if it smells bad.