Answer:
"As the empire struggled to meet growing expenses, the elites in the center were less motivated to help the emperor maintain control. When a crisis hit—such as rebellion, plague, or attack from outside groups—the emperor was eventually unable to respond and the empire itself would begin to collapse."
rebellions and such, are created because of unwanted, or unproductive, or an emperor that is not fit to rule, and when that happens that empire is no longer successful, and therefore needs new ways, so in a roundabout way, the contradictions of the old and new empires are different times, and different circumstances call for different and often newer rules, and rulers.
Explanation:
the answer was kinda the explanation...