The essence of rules and laws lies in our tendency to be drawn to behaviors that they prohibit. This quote from Iain M. Banks' "The Player of Games" suggests that the very existence of regulations is a response to human nature's inclination to seek pleasure in forbidden actions. Therefore, rules serve as a necessary framework to curb these impulses.
Furthermore, the effectiveness of laws is measured by the degree to which people generally adhere to them. Even if individuals occasionally stray from the rules, the overall compliance indicates that the laws fulfill their purpose. Thus, the societal structure relies on this respect for prohibitions to maintain order and harmony.