Not saying coins are used to buy commodities but that the coins themselves, Litecoin and Bitcoin , are themselves a commodity , meaning they serve the same purpose , to transact for products and services akin to fiat. Bitcoin being your 100 dollar bill, litecoin being your 20 dollar bill. It really does not matter which coin you are paid in, it's not like you will need a wheel barrel to haul away the currency.if btc is used everywhere to buy commodities, how can the government continue to print money to pay the benefit for the poor? at some point when btc becomes the real threat, the government will act to protect themselves.