Bitcoin offers equal opportunity for all, where decentralization, accumulation. Not just for the poor. Bitcoin acts as the driving force of everything, meaning that if the poor make efforts, take advantage of opportunities to earn money, work hard and accumulate bitcoins, they can completely dream of a better life. Contrary to the conditions they get from that effort in today's society, it's almost impossible. YES - Bitcoin has complete credibility to make changes in the aspirations of the poor
That's the thing, it is equal for everyone and doesn't go up or so just for the rich, and can't be printed by anyone. So it is limited and you would always have some of it, doesn't matter what the price is, you will always be partners of it. That type of decentralizations and equality gives it a chance to keep making regular people like us have a chance.
Normally, fiat world is not like that, if the rich doesn't have enough wealth gap between us and them, they just print more money and get themselves richer, and ask the government to protect them while we get screwed along the process, that doesn't exists in the bitcoin world which makes it the best currency in the world.