This shows starkly the only true wealth that exists in any economic system.
Work.
I remember it said that theft is actually stealing time from someones life, the time of work it took to earn the object that was stolen. Everything on this planet ( if you believe in property rights) , is really valued in the amount of work it took to purchase the item and turn it into something usable. Whether it is food, fuel, building supplies or anything else.
Being forcibly prevented from working is theft, a violation of property rights.