Evolutionary pressures imposes these things for people whose ancestors grew up and lived in places where trust and honesty within the tribal or societal group was paramount. Where liars were driven out or exiled because one dishonest person threatens the life and wellbeing of the entire group. So there is a natural selection for trust.
Cue today with migration from other entirely foreign groups who developed very differently and lie constantly about everything, even to each other... when mixed into a high-trust society, the damage is impossible to understate.
Evolutionary pressures imposes these things for people whose ancestors grew up and lived in places where trust and honesty within the tribal or societal group was paramount. Where liars were driven out or exiled because one dishonest person threatens the life and wellbeing of the entire group. So there is a natural selection for trust.
Cue today with migration from other entirely foreign groups who developed very differently and lie constantly about everything, even to each other... when mixed into a high-trust society, the damage is impossible to understate.