That, and acting as the Republic's super-weapon against the true Sith when it finally does invade. Republic, Jedi or Sith -- they all wanted Bastila. Not because she's a great Jedi, she wasn't. Because of her Battle Meditation. For everyone's low esteem of the motherhood role that Bastila has chosen, you're ignoring that from her own living room in her own house, she could save the Republic; coordinating the entire defense of Coruscant, or more.