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And that was the crux of the matter, really. Fugaku, for all his skill and political acumen, was not now and would never be an acceptable candidate in Sarutobi's eyes because once Fugaku became Hokage he would never let the title pass outside of the Uchiha clan. He would make sure his older son Itachi was groomed for the position, and he would fully expect Itachi to do the same for his children. Sarutobi would readily admit that Itachi had already proven himself a genius, graduating the Academy at the age of eight after only one year, four years before most students could even hope to. Only two ninja had accomplished this feat prior to Itachi: Kakashi Hatake and Minato Namikaze, both of whom had gone on to become S-Rank ninja before they reached the age of twenty.

There was another more serious problem, one that Fugaku, and indeed Madara, had likely overlooked or ignored – the perception the other ninja in the village had of the clan. Even if Itachi proved even more capable than Fugaku, that would not change the fact that the other ninja would not accept the beginning of an Uchiha dynasty within Konoha. Since so many of the clan took permanent posts within the walls of Konoha they had alienated their fellow ninja who had no choice but to take risky missions outside the safety of Konoha. Beyond the police force, which many ninja considered a joke, there were very few postings that did not require at least some experience in the field, and all of those were limited to the intelligence divisions.

No ninja who had ever met a Nara would dare underestimate the power of solid intelligence and good planning, and many owed their lives to insights and secrets uncovered by the intelligence division. Conversely, no ninja who had ever met a member of the "permanent police" would dare allow themselves to become that weak and arrogant, and many refused to even acknowledge them as active ninja.

http://www.fanfiction.net/s/7305950/6/