It's taboo to make money by doing criminal things.
Uzuma needs money to pay for his college classes, and he knows that his neighbor has a valuable diamond necklace.
Uzuma wants to pay for his classes.
Uzuma goes to the bank and gets a loan to pay for his classes.
Uzuma gets his hands on his neighbor's diamond necklace and sells it for money.
Uzuma gains more information on financial processes.
Uzuma is arrested when the police discover his actions.