Or more trivially, TPL for account tagging.
Microsoft's initiative on decentralized identity leveraging on the Bitcoin blockchains could be a component in this. Excellent podcast episode here: https://letstalkbitcoin.com/blog/post/what-bitcoin-did-107-m...
Not to say you're completely wrong, just that smart contracts can be used to enforce regulation rather than skirt it - like any tool the outcome depends on the intentions of the one wielding it. :)