What if you and the dead billionaire were stranded on the ocean in a lifeboat with a cat and the jewel: would you use the jewel to focus the sun's rays over the billionaire's body so that you could eat his carcass semi cooked, or would you feed yourself to the ravenous cat by cutting your wrists with the jewel and letting the cat lick your wounds, risking death yourself for the welfare of another?

And either way, do the communists win?