Imagine a great ship dominating the skyline on a distant sea. Imagine the complexity of that ship: keel, ribs, planks, masts, spars, and an infinite number of less readily named components. Each component was hand-crafted by a craftsman skilled in his trade, to precise requirements, and secured in position to take the stress and strain of a life at sea.
Now imagine a crew. They didn’t build the ship. The crew are told that the one and only purpose of the ship is to realise a profit for every man jack aboard. Any hand not contributing a profit will be turned ashore. Down below in the ship are nails. Thousands and thousands of nails. Nails are useful. Nails are much sought after in every port the ship enters. Nails can be readily sold and never traced.
The crew has been told that their purpose is profit. They have taken the lesson to heart. In every port they assess the value of the nails, and compare it to their function in the ship.
To generate profits, crew starts engineering:
They tell themselves that the lubbers at Admiralty have no idea of ships. They specified too many nails in the regulations for ship procurement and licensing. The ship will be just fine with fewer nails.
So the crew below starts sneaking out the nails and selling them in the ports. They self-certify to their warrant officer, who self-certifies to the midshipman, who self-certifies to the lieutenant, who self-certifies to the captain, who self-certifies to the admiral, who self-certifies to the Sea Lords that every nail is where it should be and the supply of surplus nails remains adequate to meet unexpected reverses. And they turn a profit, so everyone is happy and the crew are given bonuses.
You know the rest..