Plus, how many presidents do you know of that:
1. Didn't lie
2. Ran a campaign on "not changing a damn thing"
3. Followed through with all things promised during their campaigning
4. Able to completely follow through with their political, moral and ethical platforms/promises.
Politics are an elitist game of power and persuasion used by most to get to the end game... there's a reason why so many politicians are discovered doing the exact thing they either oppose or downright champion against. There's a reason that most people have the same view of politicians regardless of political affiliation. It's been like this since day one in our system and every other system where so much authority is given to individuals with limited supervision.
And even if you do get a wholesome, well intentioned politician in the rankings, they are too rare and have no influence to do anything of any importance.