To be the most "powerful person on the planet", likely involves ego. I don't really care about that and is to be expected... I do care about what the POTUS actually does. (And on that score, Odumbo righteously earns an "F"!)
Back-to-back Obama-Hillary might actually be a good thing for non-Democrats.
After another 4 or 8 years of "this" the pressure could have built to such an unbearable level (amongst some) that a massive swing to full on mega raging Republican could be likely. In the meantime Hills will be a relatively safe pair of hands.
You might consider four years of Trump followed by a strong swing back to Democrats as less desirable.
I realize I could be talking complete nonsense.
