Weiss could not help but think of his own identity. He was the First Prince of the current dynasty, the next in line to be king, and the future of his empire.
With his identity, he realy needed to be able to withstand hardcore temptations in the fuutre.
Otherwise, if the ministers under him said a few more flattering words, he would happily accept them, and there would be people under him who would steal his money easily.
Then, even if he were to lose the throne, he would just be letting his father's expectations down, right?
Therefore, if he wanted to be a good king, he had to resolutely cultivate his fine qualities of resisting temptation. If he wanted to do that, he had to start training as the First Prince first instead of a king.
He could not believe that his teacher would create an atmosphere for him to train and create a scene of resisting temptation. That was too thoughtful of him!