Crypto currencies such as bitcoin and litecoin are not inflationary currencies, There is only 21 million bitcoins to be mined out and only 84 million litecoins.
Compare that to the dollar, which governments just print up more of if they need it. During war when governments need more money as war is VERY expensive, the government will print billions and trillions of dollars to afford state of the art war equipment, paying soldiers etc. This makes ur money LESS worth and the work you have done in past less worth.
The more money that gets put into bitcoin and litecoin the more it will get worth, it is not affected by inflation. It gives the power back to the people and away from the governments. As more and more people catch up on this the fiat currency like dollar, euro, yen will loose its value as people will rather have their money in an non inflationary currency.