Akatsuki's and Danzou's goals are similar but are not compatible because whoever fulfill their goal does so at the others expense. While they both view naruto as a weapon and would like to use the power of the 9-tails, Danzou I believe is doing what he feels is in the best interest of the village. He doesnt want to risk konoha's greatest asset of failing into the enemies hand. Also, while he may have previously had aspirations to be hokage, I don't think there's enough evidence in place to suggest this is some sort of power grab attempt.