**STRUCTURAL PROBLEM #1: IF YOU OWE THE BANK...** "If you owe the bank $100, that's your problem; if you owe the bank $100 million, that's the bank's problem." When one party becomes deeply dependent on another's credit, the power relationship inverts. **The Templar case**: The Knights Templar became so intertwined with French Crown finances that key treasury posts were staffed by Templars. The Crown's debt to the Templars grew with every expensive Crusade — King Louis IX's ransom alone cost 400,000 livres, one-third of France's annual revenues. Two generations later, King Philip IV had them arrested and destroyed. The debts are frequently cited as the key motivation. **The irony of the banking model**: The Templars invented the earliest formal cheque and letter of credit system — pilgrims deposited valuables at one Templar commandery, received a letter of credit, and withdrew the equivalent in the Holy Land. This made them "arguably the world's first multinational corporation" and the most innovative financial institution of their era. The same innovation that made them essential also created the debt dependency that motivated their destruction. "Nothing succeeds like success" — until the success creates a structural vulnerability. **The structural vulnerability**: The Templars were essential to the Crown's operations, which should have made them secure. Instead, the Crown's dependency became a motive for destruction — it's easier to erase a debt than to repay it when the debtor has the power to arrest. **Modern parallels**: When a supplier becomes too essential to a single customer, or a contractor too dependent on a single client, the same vulnerability exists. The dependency looks like strength until the counterparty decides the relationship is inconvenient.