Final answer:
A courtier being respectable and knowledgeable is advantageous as it earns trust, allows for better decision-making, and enhances reputation.
Step-by-step explanation:
A courtier being respectable and knowledgeable is advantageous for several reasons. Firstly, respectability earns the courtier trust and admiration from others, including the ruler and fellow courtiers. This can lead to greater opportunities, influence, and the ability to shape events in court.
Secondly, knowledge is a valuable asset as it allows the courtier to offer informed advice and insights to the ruler, helping them make better decisions. Additionally, knowledge can enhance the courtier's reputation and prestige among their peers.