Stealing, like many crimes, has different degrees of severity. Steal an apple and you’re a petty thief. Steal a chicken and you’re a poultry thief. Steal the heart of the lord’s daughter, the apple of his eye, and you’re likely a poetic thief.
Steal a cursed apple from the garden of Hell itself, originally intended for the devil’s greatest servant? You’re a Pact-Thief.