As most people on this forum know, Bitcoin, and the technology it runs on, Blockchain, is capable of doing a lot of things. To the layman, Bitcoin is like shares; you buy when the price is high and sell when the price is low. BBitcoin can be used to verify identities, send money across the world, securely store money in a place cheaper than a bank and the list goes on. As we see consensus in Hong Kong, 2016 may very well be the year of Bitcoin.
What do you use the currency for?
I use it as a store of value, mostly.
But remember how people from third wold countries can be paid a developed country's salary provided that they have a computer with internet and work for bitcoins? Bitcoin is going to even inequalities in the world. The process might be slow because the west probably will refuse to let go at first, but these inequalities will be shed light on and as a matter of fact will slowly disappear.
We live in a world that is continually getting more globalized. Bitcoin is bringing even more globalization on top of it. It will act as a catalyser. So yeah, countries will one day have the same cost of living, and bitcoin is making us tend to it even more. Now don't take me wrong: I'm only talking about inequalities between countries, not inequalities between people. There will still be rich people and poor people. And it will take time. Inequalities between people will remain, and there's nothing bitcoin alone can do about it because inequalities between countries were man-made, whereas inequalities between people are natural (smart/stupid, cautious/adventurous, etc). Policies are the only way to deal with natural inequalities.