Well blockchain only makes it so that the data is tamper-proof, not that it is accurate infromation, or that a contract will be honored. It's trustless in that you don't need a third party to verify or notarize things, as the blockchain does it.
Indeed, the inherent position is to trust by default, to a certain extent, and the degree greatly increases on perceived images that convey more trust in some areas as you mention. Thanks for the great feedback.