I honestly doubt that, especially in Hashi's case who does not have anything beside his KKG anyway.
If we looked at Hiruzen, he was able to learn all the Jutus in konoha, and was known as the strongest Hokage konoha has ever had. He is not even with any KKG.
Minato as well, he was able to learn the Uzumaki's sealing jutsus even though he is not from that clan, he learned Tobirama's jutsus and surpassed him, he learned from Jiraiya and mastered SM to some extent...etc
people like Hashi use his KKG for everything, he was born with it, and itachi beside his MS his talent was only with Kunais in my opinion...etc
but, I guess it's only a matter of opinions.
Edit:
about madara as well, he is not different from Kabuto, he is just powerful because he steal the power one after the other
he Took Izuna's eyes, then Kurama's power, the Hashi's cells, and his SM, the he gain the Rinnegan from that, and then the Juubi...etc
it's not by his own, the same how Kabuto was stealing the other's power.