Poverty, legal identity etc. are major concerns in the third-world countries. Data says one-third of children in the world still lack legal identity (sourced from Informationweek). Poverty and lack of food still kill thousands of people. Can Blockchain put an end to all this?
I wouldn't say that bitcoin would necessarily be able to combat the issues such as poverty per se, but it definitely provides some properties that will be extremely useful to those who are in countries where banking services are hard to reach, and overall global reach of the workers are limited, thus resulting in extremely low wages.
Bitcoin can open up tons of opportunities as it can be obtained and transacted with throughout the world without any sort of identification, without discrimination, and without borders. It allows workers from third world countries to connect with employers worldwide, and also have somewhere to save their money.
But the main thing is probably bitcoin's property as a store of value. There's a ton of countries with hyperinflation problems that face depreciation in their fiat on a daily basis. Bitcoin is able to help the citizens in their country to essentially have somewhere safe to store their wealth, instead of having to scramble to spend their life savings due to the inflation (Venezuela is a prime example of this).
