I’m not sure but it sounds like you’re arguing that the non-monetary cost to society of petty theft in general justifies prosecution of any amount stolen. This seems like a much more extreme view than I was even arguing against. I believe the threat to “social trust and cohesion” is at least directly proportional to the monetary amount stolen and therefore there is still a lower bound to what makes sense to go after. I don’t know how you’d calculate that bound though given the non-monetary cost is hard to quantify.