Mahatma Hitler
I have a colleague who refused to do the test because he didn't like the questions, but I just go with it.
And Thatcher was the "Iron Lady": not nearly as authoritarian as Stalin, pro free markets, and she didn't kill 30 million of her country folk. Still, it is a reasonable spot to put her on this measure.
Would that be Lawful Good?
I tend to be centrist with libertarian leanings. It's the subscales where it gets a bit weird.
Just as a note, OKCupid is a dating site run by Harvard math students, PoliticalCompass is run by some African-American journalists, and yourmorals is run by a bunch of academics and their work is peer reviewed.