Why does Rhetoric Inluence Others?

Deciding to go the Thesis and Theoretical Route.
For My other question, "Why Does Rhetoric Influence Others?", I feel that I must approach my question as a "Thesis". This is because the question isn't as specific as a hypothesis, and this will allow me to use many examples of great speakers that used the art of speech to influence people. This would then be more of a "Theoretical" question, rather than a "Practical". Theoretical questions are questions of knowledge, rather than a question of action. Being able to question the actions and reasoning behind rhetoric is much more Theoretical than a practical approach.

Possible Stasis Approach
If I use this question, I believe a suiting stasis would be the "Quality" route . This will allow me to as questions like:

• Is Rhetoric good or bad?
• By asking this, I'm able to question the pros and cons, and then come to a consensuses by the end of my paper. 

• Is Rhetoric add up with Fact?

• There are times when we see speakers dodge questions, and try to be flowery with their words. But does it come out to be a positive thing, or negative?

Was this Useful?
Now that I've done some thought on my two topics, I feel even more torn between them.
I wasn't too hot on this topic from the start, but now that I've had some time to think about it, it's definitely grown on me. I suppose I'm still confused if either of these topics are even worthy of a 5-7 page paper, so I should probably make a decision somewhat soon.