And to think of the political impact (of course the gospel has political implications-and not even subtle anti-imperial political implications).
The "gospel" and the "evangelion" were terms only used by the emperors. The evangelists are directly confronting this power. Taking an anti-imperialist stand. Like NT Wright describes Paul.
Makes the Marcan chapter on the demon Legion take on a different meaning, despite its watered down "legion means many, blah, blah, blah," (The word "legion" really had only one meaning around 55 AD).