Until they get a good government, they will continue to be underdeveloped countries. The only thing that can make a country better is having a good government, and the only way to have a good government is for the country to have a system that prevents government officials and politicians from neglecting their jobs.

The difference between developed and undeveloped countries is not because the developed countries have good politicians or government officials, but because there is a system that makes sure people do their jobs, and those who don't do their jobs are punished. In undeveloped countries, people are rewarded for not doing their jobs.
The change can only come from the people. You can't expect those in power to give you change because it favours them. So the people have to be ready to fight for what they want.