Elves do not rely on money in the same way humans do. While money is exchanged for goods and services, it is not a driving force in their society and is not a factor when considering social classes or nobility. Elves are given a birth fund with more than enough money to support them comfortably through life. They can pay for things using a small green cube (Treasury Cube) that they scan on a gadget called a Deducter.
With their birth fund, elves are given five million lusters at birth, supporting them throughout their lifetime.