Hi rodguy, I agree she has her eye on the prize (POTUS) but she also needs to be in a better position to defend herself from personal and professional attacks, and unfortunately, to raise some money privately so she can pay her current and (most likely) future legal fees.
Meanwhile, she can become the LEADER of the conservative voices out on the speaker circuit, fund raisers, and campaigning for good conservative candidates. While doing this, she enhances her chances for the nomination.
I'm good with this, it's a personal choice. Government is not the be-all end-all in her life...or mine.