In reference to the second post, where he turned down the dictatorship:
In Roman times, the senate could appoint a dictator (usually a consul) to lead them through times of crisis. 'Dictator' is a word with very negative connotations today, but back then, Dictators were good things. They would lead Rome with great authority through very tough times, usually wars. When the crisis was solved (or the 6 month term ended), they would step down and assume their previous role. So they were not Dictators in todays sense, although they did weild great power.
And yes, he did turn down the crown, but only because if he did not, he would likely heve been run out of town- or murdered- by senators (of course, he was anyways). Rome had previously been ruled by kings centuries before, and they were looked at as very bad.