What are the motifs in Chronicles of the Crusades by Jean de Joinville?

In both stories, there are several stories about the corruption of government officials in nearly all governments shown in both books. In the first book, corruption begins with the promises made to the dying about the Crusade. Many promise to take the cross, only to gain monetary rewards. There is corruption in the Church as the Pope promises absolution of sins if the French Crusade in his name. There is corruption among the barons as they attempt to stop the Crusade. Some barons even resort to lying and deceit in order to achieve their goals.