Bitcoin alongside other cryptocurrencies has aided the economic development of many countries.
Bitcoin does not aid anyone or any country because the times for faucets with good value is no longer there. If you or a nation want to have Bitcoin, use your money to buy it. So aiding is not relevant term to use here.
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.
It is not different too much than bank transfer or VISA transfer, Paypal, etc. You can do it similarly like with Bitcoin but you forgot most important technical strength of Bitcoin transaction, no censorship, no charge back and its network is strongly decentralized, hardly to be attacked and roll back the blockchain.
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.
Individually, you can get rich with Bitcoin and it is more easily to make your investment decision. It is personal decision and personal taste to accept risk to chase profit and wealth.
Nationally, it's harder to accept Bitcoin because of volatility and even a nation accept it, it won't make that nation richer. Many things in society must be changed by many sectors and initiatives. Only Bitcoin can not solve all those things, never can do that.