Jon Meacham's biography of the third US President argues that Jefferson sought power and used it to his advantage, even as he claimed not to do so. While this could be said of virtually everyone who became President, in Jefferson's case it is a little surprising because he has such an aura of being a philosopher-sage, as opposed to simply a politician. Jefferson definitely had literary talents, he pursued scientific knowledge, and he had unique philosophical views, but he was more of a politician than most people probably think.
In Meacham's account, he devoted his life to the principle of democratic republicanism, as opposed to monarchy, and viewed many political questions through the prism of defending the American experiment against the threat of monarchy or sympathizers of monarchy.
Jefferson's life is a progression from the plantation life of his father's family to the House of Burgesses in Virginia, then to the Governorship of Virginia, then to the Continental Congress, where he drafted the Declaration of Independence, then to a diplomatic mission to France. From there, he became Secretary of State under George Washington, the Vice President under John Adams, and the President. Meacham treats the progression of Jefferson's life toward power as a kind of given -- he was born into privilege as the son of a landowner and slaveholder in Virginia, although he also inherited debts from his father -- and the book offers little explanation of the ways in which Jefferson rose to greatness, other than an innate brilliance. There are mentions of important teachers in Jefferson's life and turns of fate that led him to be in the right place at the right time, but it all seems to fit a little too neatly in Meacham's formulation of his life. The only troublesome step in the progression is the Governorship of Virginia, which Jefferson may have been unsuited for and for which he faced charges of cowardice because he had to flee from the capital when British troops advanced on it during the Revolutionary War.