The nazis were revolutionaries who wanted to radically transform germany.

The actual answer to this is that they weren't revolutionaries. They (in the beginning) did everything according to the constitution that was then in place. They were obedient to all the rules of the land in place at the time. They started out as looking like they would be just rulers with a few wrinkles. 

Those few wrinkles (like forced colonization) were what ultimately brought world governments to action against them. It didn't help that they never denied and always acted upon their antisemitic doctrines.

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.