Bitcon's value proposition is providing a decentralized, zero trust public ledger that's incredibly cheap to transact in and also near instantaneous. Think of it as the zero trust functionality of paying someone in cash, cheap in that you can conduct transactions for ~half a percent (compared to 2-3% merchant fees for credit cards), decentralized in that jackboots at Visa, Credit Suisse, etc can't ban you from the system because "muy feels", and fast (near instantaneous) compared to trying to conduct an international wire transfer (fricking lol, it takes days).