How people expect that bitcoin is going to be obtained for those that have barely enough to survive? In the best case scenario bitcoin is going to put a stop to several practices when it comes to stealing from the people through inflation and over the long term that could help the economy of the people but nothing more.
If Bitcoin at some point in the future becomes just as dominant as fiat in terms of local currency functionality, people no longer need to use fiat and no longer need to see Bitcoin as an investment tool.
It might not sound all that realistic right now, but we've seen how people in economically weaker countries are more likely to adapt Bitcoin than to keep using that what they had for years but isn't working properly.
Lightning is perfect for that. It provides insanely cheap and fast transactions, and that's exactly how money should function. Bitcoin has always been money, people tend to forget that due to their greed.