@ehBeth,
You may be right! She is definitely smarter than most people in DC, her level of intellect is superb, yes, she's socially inept, she's not charming and she's not a people person, all things you need to bring to the table too!
Aside from that, I personally think that she is not sincere and dishonest. It's my gut feeling, instinct, whatever you want to call it, but I sense that about her and I am a pretty good judge of character.
If I take Angela Merkel as comparison - she's also not too charming and socially awkward, highly intelligent and can hold her own. Yet, she is honest and sincere and how she handled the recent refugee criticism showed how much she identifies and feels for them. It made her a "mensch".