Which mythological 'loyalty program' most directly inspired the modern retail concept of tiered customer rewards systems?

Throughout mythology and folklore, gods and legendary figures often used various methods to maintain devotion from their followers. These ancient 'loyalty programs' bear striking similarities to modern customer retention strategies. This trivia explores how mythological entities rewarded devotion and maintained 'customer loyalty' in ways that parallel contemporary marketing practices. Test your knowledge of both mythology and customer loyalty concepts!

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Ancient Greek Mystery Cults (like the Eleusinian Mysteries), which offered escalating levels of secret knowledge and status to long-term initiates
Norse Valhalla selection process, where warriors were chosen based on battlefield performance rather than devotion to Odin
Egyptian afterlife judgment, where hearts were weighed against a feather to determine one's fate
Celtic seasonal offerings to nature spirits, which were made uniformly by all community members regardless of status