Consider the oracle problem, the fact that running Hello World requires mining a block, that software contains errors and cannot be patched on the blockchain, the curious absence of real world applications of blockchain after all those years, and the inevitable precedence of the Law in the real world that makes any "the code is the law" ideas moot...
A complicated, hard to understand scheme like blockchain is just the right thing to keep the crypto hype going and to attract more of that money that is looking for investment opportunities in this world of overvalued assets and low-interest rates.