The principle of checks and balances is designed to ensure that no single branch of government becomes too powerful. In the context of Congress having the power to raise its own salaries, this illustrates the system of checks and balances in action.
However, it's important to note that this power is somewhat limited. For example, any salary increase must go through a specific legislative process and cannot take effect until after the next election cycle. This limitation serves as a check on Congress’s ability to unilaterally decide on its pay, as it ensures voters have the opportunity to weigh in before any increase is implemented.
Thus, while Congress has the authority to raise its own salaries, this action is subject to the scrutiny of the electorate, illustrating a balance in power and accountability.