The high-level explanation I’d give for this is that smart people make better decisions in general, and certain classes of bad decisions are also illegal. So perhaps the reason smart people follow rules more isn’t that they’re more inherently rule-abiding, but that they behave in more reasonable ways, and rules tend to be reasonable (obviously not always, but they’re more reasonable than if they were assigned at random).
The high-level explanation I’d give for this is that smart people make better decisions in general, and certain classes of bad decisions are also illegal. So perhaps the reason smart people follow rules more isn’t that they’re more inherently rule-abiding, but that they behave in more reasonable ways, and rules tend to be reasonable (obviously not always, but they’re more reasonable than if they were assigned at random).