Criminal justice officials had frequently complained that their jobs were made by the practice, once common in many states, of sealing juvenile court records.

more difficult.    

Explanation:

Criminal justice officials had frequently complained that their jobs were made more difficult by the practice, once common in many states, of sealing juvenile court records.  This is so because, it becomes difficult for law enforcement officers to keep track on previous offender such as juvenile offenders who may likely commit crimes again in the future.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.