Bitcoin is actually becoming an alternative source of income for the unemployed remotely to make a living. It is providing part time work at home globally to all and sundry and so I agree that it's a source of income.
It won't be easy at all to promote bitcoin in remote areas as internet is one of the main factors and even if suitable internet is provided to them we need them to have some basic knowledge of bitcoin and how exactly trading works. We can help them with bitcoin in their life but it sounds impossible to help them earn a living from it.