That was Jesus' advice regarding mal treatment from those within our community.  With violent political authority, however, Jesus tells us to turn the other cheek, to walk the extra mile, to give our shirts as well as our coats.   This is not because we are supposed to honor these people, or join them, or choose them over what we KNOW to be moral actions.   It's to stand on a higher truth than their violence and abuse.

Two different types of interactions and two different types of responses.   They aren't interchangeable, unless you just don't care what he really said.