I understand your point, we really wanted a decentralised system, in which bitcoin did provide in the beginning. However, as time evolved, specially when the price started to run at the rate of $0.1 to $100 to $10k to the eventual $19k in 2017, the ball game has change. It now become an asset, the best speculative asset that we never seen before, better than gold or even precious metal.
Businessman and institution always wanted to venture trending stuff. We are in a free world govern by centralized government, so as long as these institution had their permit, they can always participate in any kind of business stuff to take advantage of whatever their target is, and this time it is Bitcoin. Besides there is no rule on the code of Bitcoin that forbid anyone from the government to participate or institution to take advantage of its popularity and technology.
The topic describes the issue for us. For us to become a decentralized, we should focus more on mass adoption. I know these may provide some mass adoption but with centralized adoption, it is useless and contradiction for bitcoin itself.
So who is to blame with this kind of evolution?
No one, it is one of the path of Bitcoin, it is a natural occurrence, a product of cause and effect.