I work for one of those Big Tech companies, and internally, it is anything but legible. Very consequential decisions are made by a small team that happens to have responsibility for the codebase in question, oftentimes very far down in the org. Culturally at least there is a respect for data and a sincere effort to do the right thing, but when your decisions impact 3 billion people there is no way a human can fully evaluate them. And ironically, a recurring problem for the last 20 years is that the CEO has no idea what's going on within the company. Most records about what's being worked on, why, how far along they are, who's involved, etc. are firmly in the realm of metis, tribal knowledge that's passed down in 1:1s and watercooler conversations.
The more I encounter other powerful government bureaucracies (like building codes, local government, zoning, legislation), the more I suspect they work the same way. Somebody at the time it was formalized decided "this is how it should work" on the basis of the best information available at the time, and then once it's formalized, it's virtually impossible to change.
I'm interested in crypto not for the "get rich quick" or even the "currency" aspect, but for the prospect of replacing corporations and executives. Crypto's big innovation is in creating a shared reality everybody accepts without a centralized authority to enforce that reality. This is exactly the same efficiency advantage that having a single executive gives. Could you use blockchains to essentially create an "artificial executive", a plan of record that everybody gets behind that doesn't fall prey to human fallibilities?