Nobles didn't have that much challenges, but one big challenge was trying to survive. Most noble children die at a young age due to the lack of medicine and the abundance of violence that existed back then.
Potential benefits that belonged to the group is that they had more free time compared to the serfs. They also could enjoy a more luxurious life. They could hire knights that could assist the nobles.
Often times the African residents of regions that became rich due to exports of local natural resources would take positions of power in government which sometimes led to corrupt government that became very extractive.
