I'm not as optimistic as you start accounting to regulation, scams, security holes and technical infeasibility along with unaccounted risk. Eventually after 7+ years of smart contacts, most of the achievement has been #DeFi and #NFT which are in one phrase. Token generation.
I haven't really seen as much use like the arbitraging features por voting that where also other functionality from smart contracts.
So like a congressman said at one point. Most of the impact of cryptocurrency is tokens buying for other tokens. Which might sound too simplistic but as time goes by is often true.
Crypto greatest impact on the third world has been remittances, but credit is still a long way from being something people has got into, let alone, identity or traceability of supply chain.