All of those things you list ultimately do require trust. A trustless ledger documenting that I own the land my house is on, doesn't make me any safer against

All of those things you list ultimately do require trust. A trustless ledger documenting that I own the land my house is on, doesn't make me any safer against a government determined to steal my land. A car lease ultimately requires me to trust that the leasing company is going to abide by their contractual obligations, just as they are trusting that I will abide by mine, and the contract enumerates what happens if either party fails to uphold their obligations, which is ultimately enforced by the court system. A ledger doesn't really change any of that. etc.