The trivial ability to use even a small fraction of this wealth to improve a huge amount of lives is exactly what the “effective altruist” crowd should be creaming themselves over.
The fact that I can buy a house in Thailand for something insanely cheap also means that I can make sure that the local school has whatever they need, for basically just a haircut.
You can take the local orphanage and make sure hundreds of kids are comfortable for hundreds of USD a month.
USD and EUR are in for a massive correction in foreign exchange value. It's not like a dollar earned in reality is worth ten times more than what a person in Thailand earns. So enjoy it while it lasts. The law of supply and demand means that as the supply of USD and EUR to other countries increases, their value will decrease. Especially the EUR, which has nothing to back it up. At least the USD has the world police to back up the currency value.
Foreign nations need USD because global trade is conducted in USD. Global leaders are arguing about this right in this very moment, BRICS feel they might leave the dollar without fear of being bombed. The EU has no military means to backup their currency exchange rate, only import and export. And if more Europeans are moving their spending abroad, that will diminish the value of EUR.
The fact that I can buy a house in Thailand for something insanely cheap also means that I can make sure that the local school has whatever they need, for basically just a haircut.
You can take the local orphanage and make sure hundreds of kids are comfortable for hundreds of USD a month.