But what I mean to say is that the legal system and the blockchain may simply be irreconcilable, without losing the benefits of each, as a mechanism for consens

But what I mean to say is that the legal system and the blockchain may simply be irreconcilable, without losing the benefits of each, as a mechanism for consensus. If the regulatory system requires an override, then what's the point of extremely complex, expensive, and slow distributed permissionless consensus? It may well turn out that permissionless blockchains are only really appropriate for markets beyond the purview of regulators.