Yes, but doesn't taking Foment Rebellion mean we don't rescue the Ring immediately and try for a slower victory instead? We need something to show them that being on our side is worth it. And we don't need to fully use the inefficient version of Ennobling on anyone, just show some of its effects as proof.
Taking no personal power here seems pretty horrible. That just leaves even more vulnerable to the backlash of giving up the killing blow that's inherent in the choice. Rank or Vigor seem like the picks for Foment.