The term "prevalence" is important. I am not sure that you are going to find that much in terms of these emotions in Gadaffi. For example, I think that it will be a challenge to find a great deal of guilt in Gadaffi. Where does it lie? It doesn't seem like he has reached that point, or he would have left office by now. He seems quite comfortable in terms of being able to settle in for the long haul, despite what the international community feels. In this way, I don't see him in the same way as Macbeth, who experienced revelation about his own true state. Gadaffi is "not there" yet.
Ambition might be a more likely theme that connects both figures. I think you need toanalyze Gadaffi's actions and his quotes. You can find much in his quotes that reflect a sense of ambition and desire for power. He is a figure who covets power and his need to gain more of it is reflective of his ambition. I think that this might be an interesting point of view to take in terms of assessing Gaddafi and Macbeth. Focusing on how both view the appropriation of the world in accordance to their own subjectivity as a means of being in the world could be something that might reap some strong connections between both. I think that I have a fundamental challenge, though, because I see Macbeth as a heck of a lot more intricate and self- reflective than Gadaffi. However, that does not mean you cannot bring this dimension out of the Colonel. It might be a really powerful work sample if you were able to do so in a comparison or parallel with Macbeth.