Bitcoin alongside other cryptocurrencies has aided the economic development of many countries. Bitcoin is typically used for online transaction and businesses in third world countries despite widespread poverty, this is because people can easily connect to the internet and participate in the crypto economy in many developing countries such as India and continent like Africa have high cryptocurrency adaptation rate. After purchasing bitcoin through platforms accessible to their countries, bitcoin holders in third world countries can trade Bitcoin for profits or hold onto their tokens as an investment. Inflation which is characterised by devaluation of currency alongside increasing price of goods and services, this has made people to turn to cryptocurrency like bitcoin an asset that maintain its value over time to hedge against inflation.
Were you in a dream-like state when you were posting this?
First of all, in third world countries, it's not common to have access on computer, smartphone and on internet. Second, people in third world countries rarely know about Bitcoin (excluding El Salvador). Also, another problem that arises here is that people, especially in third world countries rarely know how to securely store their bitcoins.
Also, money doesn't come out of thin year in crypto world. In order for you to profit, someone has to buy bitcoin and pay a lot, no one is silly enough to put money in bitcoin pool and let poor countries cash out from this pool. It's not as easy thing as you make it sound.