...tech giants such as Facebook, Amazon, Microsoft, IBM, Oracle, etc are starting to desperately pursue blockchain projects, although I doubt if their inherent greed will make them successful in their quest.

Oh dear @gandhibaba, it won't be their greed the factor that may guarantee for them the domination, it will be their capital.

Even in this blockchain we can see how the forces of capital predetermine the direction and rewards.

And it is not only because of the "proof of stake", because at other projects by other algorithms these forces also manifest their power.

For example, in the mining process of currencies like BTC, who can make the most rewards and dominate the pools? The richest miners. Those who have the capital to establish the biggest mining farms.

It is the capital, my friend. That's why Evil Corp will launch its currency, and it will be the most famous and used. It will become the reference, just because it will have the highest number of users and transactions.

Here, outside of Mr. Robot's fantasy, we have several Evil Corps. And yes, undoubtedly you're right, the richest people of the world will be, in next years, those whose power is built on blockchains and all the new technologies.