ציטירנדיקער פּירוש אויף עמוס 3:9

Remember that Egypt was a country in which there occurred many disturbances (compare Amos 3,9). In order to avoid becoming victims of muggers etc., the travelers who came to Egypt to buy grain entrusted their beasts, their sacks as well as their money, to the officials who would measure out the grain for their rations. The official would measure out grain for them in accordance with the amount of money they had deposited with him. The buyers would accept what was given to them without double-checking and thereby displaying distrust in the Egyptian government (based on Kohelet 8,4). The brothers therefore had good reason not to appear suspicious and to double-check what Joseph’s officials had done when filling their sacks.

Better a little with the fear of the Lord, than a great treasury and turmoil with it The voice of people shouting that the treasury was made from robbery and violence, as in (Amos 3:9): “And see great confusions within it and people being oppressed in its midst.”