Inflationary currency values work done tomorrow over work done yesterday. If there's a major catastrophe, like, say a giant hurricane that devastates a coastal state with a healthy economy, then the returns on work done tomorrow have a effect that can cascade through the economy magnified by the money multiplier. On the other hand, if you valued work done yesterday, and a bunch of value is destroyed by a major disaster, it is a sunk cost, not an unfunded liability that affects the person who depends on the payment of that liability, and the person who depends on that person, and so forth.