Scale and context matters. The loss of a single food item in your own house has a much larger impact than the loss of a single food item in a kitchen stocked t

Scale and context matters. The loss of a single food item in your own house has a much larger impact than the loss of a single food item in a kitchen stocked to feed dozens of employees - in the former case, your lunch disappeared but in the latter case there's just one less pack of crisps in a box of 100 that nobody will even notice and the positive impact of that (in terms of morale, especially for regular contractors) outweighs the 50c the pack of crisps costs.