For bitcoin to be efficient there is a need for minimum technology for example pc and a good internet connection, this is the reason why bitcoin is not a solution for every country. I am sorry to say this.
If bitcoin will lead to creation of job that would help to improve the economy.
It's not fiat or paper money that is simple and easy to use but crypto is very useful for online transaction, and the low cost and fast transaction
is needed to open opportunity to easily send money in every country.
In terms of investment, this does not generally help the economy as only holders will benefit, the usefulness of crypto
will be more appreciated if a massive adoption will happen.