I agree with you, most especially, with the first paragraph of your comment, I myself living in a country that is majorly considered to be a third world country, I would say that based on my experiences overtime, it is better to earn in a currency that is stronger than our local currency, (like the dollar) than earn in our local currency, and this because just as you have said, inflation most of the time bite really hard to the extent that you discover that after you've gotten your pay from what ever means, the money is so undervalued that it almost cannot buy anything meaningful in the market.
This is why I personally prefer to do all my betting and gambling in dollars, even when I am betting on a local casino, I simply set my prefered currency to dollar rather then leave it set to my local currency, and when I open a new local casino and discover that they don't support me setting my prefered currency to dollars, I simply just ignore that casino and look for another.
This is one of the reasons why I actually don't use our local casinos too much, I prefer to gamble on international online casino like Stake and the rest, thank goodness for cryptocurrencies that have made both deposits and withdrawals from any part of the world so easy, way easier than it would have been if fiat was the only means of deposit and withdrawals from online casino..
If I understand you perfectly, what happens is that I believe that my country is one of the highest in inflation worldwide, so having local currency is useless, as I said, only to pay for services, it is the only thing that I see as useful , for a country that has a very devalued local currency like mine there is nothing to do, of course, one needs the dollar, because with that one can manage alone, and they will see whether to change them to the local currency or something like that, or I also always configure receiving and making a deposit with USD, because it is a strong currency, in itself, what we should always try to do is accumulate BTC to protect ourselves from possible inflation that comes from the dollar, although in these countries it is not I feel the inflation of the dollar very much, however in the informal economy products raise their price in dollars, the truth is that where I live it is economic madness, there is no control, but it is a fact that we must protect ourselves economically.