Kim's stem cells can do whatever they want against a fictional disease. Though I'm still not sure how there's a "risk" to her life at all. And he called the imam because they came to an understand of mutual respect earlier, and he figured he was just about to die with a ton of **** on his conscious. What else is he going to do?
Upon further reflection after seeing the finale, going back to I think what Charismatic was trying to get at - Tony was really the embodiment of what Jack would look like if he truly lost everything. I think this was the whole point of the season, with Tony pulling the wool over everyone's eyes. The only person who could potentially rival Jack is Tony. We merely got to view two opposing sides of the same coin.