Why did the common memory fixate on salt, even if the payment was made in coin?
Answer
The perceived value of the essential commodity was more enduring than the transaction form.
The linguistic legacy fixed upon the salt itself because the essential nature of what the payment bought—its perceived value to the common person—was more enduring in public consciousness than the actual form of the transaction (coin).

Related Questions
From which Latin term does the modern word *salary* originate?What crucial function did salt serve that made its allowance necessary for Roman soldiers?How was the *salarium* generally provided to Roman soldiers?If the *salarium* was paid in coin rather than the substance itself, what risk did the soldier assume?How does modern compensation typically distinguish salary from wages regarding measurement?What aspect of a Roman soldier's duty cemented the link between the *salarium* and guaranteed periodic payment?Which contemporary allocation mirrors the *salarium*'s core function of provisioning for optimal role performance?Why did the common memory fixate on salt, even if the payment was made in coin?Which entity is described as having codified the idea that consistent service demands a consistent monetary allowance?What connotation does the term "wage earner" often carry compared to "salary earner" in modern classification?