Still, it is said that they could accumulate great wealth once they worked as Zuryo, and quite a number of middle class nobles served the upper class nobles privately by providing them with a substantial financial contribution in order to keep the position of Zuryo.
それでも、受領を勤めると多大な蓄財ができたといわれ、蓄財によって上流貴族へ私的に奉仕し、受領の座を確保しようとする中流貴族は少なくなかった。