Some think that Bitcoin and other cryptocurrencies will take money from the rich and distribute to the poor. While some of the technologies being developed may indeed have this effect and be somewhat socialist in nature, (especially with automation, and AI on blockchain which is a whole different animal) what is really going to happen on large scale is a "changing of the guard".
Money and power will move from the hands of those who refuse to learn and be apart of innovation, to those who are on the front lines. This will move old stubborn money to innovative old money hands, rich to poor, poor to rich even, and several other combinations.
Governments may lose some power and control due to losing revenue from taxes and inflationary printing practices, but will likely just change their paradigm and remain in power. Corporations and banks are already catching on and the innovative ones will likely see order of magnitude increases in assets. Those who are passive (rich, poor, middle class doesn't matter) are the ones who will miss the train and see losses in current and future asset value.
Here are some articles that illustrate how real and how soon the pieces in this puzzle will be put together.
https://www.coindesk.com/ethereum-foundation-strikes-deal-russian-development-bank/
https://www.coindesk.com/russian-deputy-pm-says-supports-state-backed-cryptocurrency/
https://entethalliance.org/members/
http://money.cnn.com/2013/03/28/investing/bitcoin-cyprus/
https://99bitcoins.com/price-chart-history/
-CryptoRock