Trust is an ideal to strive towards but the unfortunate case is that its reliability quickly starts to strain with scale. I'd argue the economy at large is held together not by trust but by reputation, curation, regulation and threat of lawsuits and jail time. With the last concentrating trust in legal institutions, overall reducing trust burden.

In many countries, the richest companies operate unethically, with impunity because the legal system is in the pocket of a corrupt few in power. In such countries trust in institutions is nonexistent. In developed economies, regulatory capture still leads to inequities and gross inefficiencies.

Today on the internet, reviews and product search results can no longer be trusted. For a very long while, buying from a large class of products on Amazon was a gamble. A breakdown in reputation and curation.

Computing environments were originally high trust, a property they could not retain at scale. Encryption, https everywhere, anti-ad tracking, secure VMs, gated app stores, "Don't trust the client" designs, onion routers, anti binary blobs are technologies and principles which reduce the need for trust. Technologies like DRM, copy protection rootkits and Trusted Computing are corporations communicating their lack of trust in humans inhumanly.

There's always some minimal amount of trust necessary. The optimal minimum generally decreases with scale. Hawala might seem an exception but closer inspection shows it depends on shared belief systems, local interactions on reputation networks and honor; memes which reduce trust burden at scale.

I'd also argue bitcoin isn't about trust but about issues which arise with open permissions and no centralized enforcement mechanism. Its throughput issues addressed by "layer 2" solutions, as decentralized credit networks (from a dispute and authority perspective), actually have fair overlap with honor based informal money transfer systems but without the centuries to have ironed out issues.