How did concern over revenue lead to suspicion of pan arabism ?

During Pan Arabism, or the Arab Unity, a lot of concerns were raised regarding the revenue that help lead to suspicion. During this Arab Unity, the oil-rich Arab states were concerned regarding the sharing of revenues with poorer states in Middle East.

answer; i believe the correct answer is (the willamete valley);

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.