Jinnah's family was Ismaili Shia, and he followed Twelver Shia beliefs early on in his life. However, many people say that Jinnah converted to Sunni Islam some time in his life. Today in Pakistan there is still people debating Jinnah's religious inclinations.
But let's say Jinnah was undeniably a Shia, would he still rise to prominence? Jinnah, when he was in Congress, was called the "Ambassador of Hindu-Muslim unity". If Jinnah was undoubtedly a Shia would people in the Muslim League call him the "Ambassador of Sunni-Shia unity"?