Why doesn't the process of electing officials prevent rent-seeking and corruption?

Question

Quizplus · Accepted Answer

The process of electing officials may not prevent rent-seeking and corruption because it is often difficult and costly to gather information about the behavior of elected officials. This information may not be readily available to the public, or may require significant resources to obtain. As a result, some elected officials may engage in rent-seeking or corrupt activities without detection or punishment.

Answer: B 
 Even if evidence of rent-seeking or corruption is uncovered, those who benefit from such behavior may attempt to pay off others to keep them from whistleblowing or reporting the misconduct. This means that even if the electoral process is designed to prevent rent-seeking and corruption, it may not be effective in practice due to the potential for bribery and corruption among those who have power and influence.

Why Doesn't the Process of Electing Officials Prevent Rent-Seeking and Corruption