If I may get a bit Christian here...
In the Girardian/classical sense, regardless of the merits of the scapegoat, he is still arbitrarily selected to assume the sins of others and then to be sacrificed to bring catharsis.
Or if it is offensive to suggest he is Christ-like, the scapegoat mechanism pre-dates Christ (well, at least as far as human history/chronology is concerned). He is persecuted not because of his legitimate crimes but because the blood of others (those murdered Benghazi) has to be assigned to someone. The power of the State then came down on the guy.
Or, to be completely out there, this scam artist Nakoula is paying penance for the scam artist in the White House.