Ever since Shawn Fanning and Sean Parker had swept away the world with their service Napster, popularising the peer-to-peer (P2P) file sharing protocol, they showed us the true power of decentralization. They caught the music industry totally unprepared (luckily for the movie industry, they had more time to prepare as the most of home internet connections at those days were not broadband and not fast enough for easy downloading of movies) and it suffered huge losses.
The big downside of this was that many artists and those rare non-greedy managers suffered along the big players too. However, if better prepared, they could have utilized this technology for their own benefit. Also, the artists could have found a formula to better realize their talent and hard work. Who could have known though, right?
This phenomenon showed a way for more future decentralized technologies and one of them is blockchain. The idea of blockchain came from a totally different story. Many people were growing dissatisfied with the current financial system, the way money is created, controlled, and also allocated.
We know that creation is a problem - if there is only a bunch of people that can control the supply of money - it can be misused in many ways. Doing business with the likes of credit rating agencies they can create opportunities for no one else them themselves, even in the form national crisis.
The allocation is also a problem. It's not just that fiscal politics are unfortunately mainly used just as tools for political bargain and marketing, but the fact that the allocation doesn't work very well with human nature in general. A good example would be hunger in Africa. It's not just that the world currently has enough food to feed everybody, it is also that those countries with the image of being poor are having it too (it's only being very poorly distributed). Robin Hood cannot always save the day.
Blockchain utilises a ledger technology to offer something similar to a peer-to-peer protocol, in a way that there is no central node needed for the communication of the clients/peers. It is a pure decentralization in the technological sense. In the commercial sense - yeah, whales are the problem.
I found this great text about how blockchain can benefit various niches of society through decentralization and not just through a new way of distributing money
https://futurism.com/sponsored-how-centralization-paralyzing-society/.
The main role in this transformation should be played by the system of smart contracts. This self-regulatory system offers a way to avoid human error in judgment, and by that, I primarily mean bribery and corruption. It also offers a way to avoid the need for the middleman.
Does anybody remember a legendary movie Metropolis, made by Fritz Lang, which tried to explain to us why the middleman is important? In that sense - a middleman from this movie was an economist, a manager functioning as a bridge between the working class and the government, and we could have considered them being really needed. But the manager can get greedy, and anyone else in that chain can get greedy too. Hence the elimination of the middleman and strict but honest rules for the end parties can make up a much better system. An artist could get a greater share for his work, a person buying his first real estate could get a job done without a dozen of agents functioning as intermediaries, with the constant fear of what if some of them are corrupted etc. etc.
Talking about politics, it is also interesting to note how they like to sell centralization as decentralization. Remember communism? The idea was not bad, but the problem was that all the decisions were made centrally and everything, starting from money, was collected centrally. Hence the idea was ruined by the mechanism in the process - it beat its purpose.
Do you know how the voting system in your country works like? I can tell you how it works in mine. You have (too many) autonomous districts. They call it a decentralization. Imagine yourself founding a new political party. In order for someone to be able to vote for you, you would have to register a bunch of people and have them active in each of this autonomous districts, otherwise, people from districts you left out wouldn't be able to vote for you. You literally have to have a small army. Those are the rules. There are only two political parties in the country who have enough money and support to pull this off. They call it a decentralization. But it is actually a decentralization used as an instrument for harder centralization.
This is making changes nearly impossible, or at least very slow. Thus centralization is indeed paralyzing the society.
This topic is open for discussions.