The fact is that slightly less than half the world's population has no internet access, but this is in some cases irrelevant since they do not have much more important things like medical protection, education, or even the right to to vote freely. Whether we like to admit it or not, the world is actually very selfish and the fact that the rich every day become even more richer, and the poor lose what little they have speaks for itself.
The question is how to change it, and answer is very simple - world wealth should be evenly distributed, people need to show compassion for other people. But that will not happen for a long time, tons of food are thrown away every day, and thousands of people literally die of hunger - which means that people care only for themselves mostly.
Bitcoin can be just part of solution in this global problem, but even in highly developed countries cryptocurrency is still actually just at the beginning of changing the way the present financial system works. The number of crypto users is estimated globally at only 0.5% to max 1%, which is actually almost insignificant percentage.