Even blockchains are less monopolistic than web 2.0 (Google, Facebook, Amazon, etc). At least blockchains are powered by (largely) independent users, instead of a single corporate entity. But I still prefer further decentralized technologies like email or bittorrent
Reader view, tools for the visually impaired, and browser automation are actually useful and commonly used, so that definition win the title for me.
There are certainly useful distributed web tools (e.g. email, TOR, IRC, Matrix, self-hosting, bittorrent), but they're the opposite of recent trends towards monopoly.
The distributed meaning is absolutely poisoned by blockchain at this point.