How did courtly poetry and romance of chivalry influence the settlement of knights in life?

The plot of such novels and literature was the story of a brave, kind and honest knight who, in the name of the lady of his heart, performs all kinds of feats. Such works became a reflection of a new ideology, which later largely influenced the mentality of Western people. Namely, in them the self-sufficient personality of a brave, honest, strong hero comes to the fore, who does great things, first of all, in his own name, and only then in the name, glory and honor of the family, the senior, the collective. Courtesy literature actually promoted a similar system of values ​​and behavior, pushed the knights, and indeed everyone who reads such novels, to do the same.