Currency is the only one of those that actually works within the corrupt legal system because it doesn't require any action on the part of the corrupt system.

Currency is the only one of those that actually works within the corrupt legal system because it doesn't require any action on the part of the corrupt system. You can use it directly with other parties. (smart) Contracts? Without institutional enforcement, doesn't matter. Maybe being all on-chain, but that hasn't really functioned. Ownership (NFT)? Doesn't work at all without some level of institutional enforcement. Blockchain does only one thing well.