Remember too that Cap was supposed to be the first of a whole army of people, but now hes the only one. Plus he feels that he failed. His partner, Bucky died. He woke up, in the current continuity, in the early 90s, to find out that his best friend is dead. Everybody he grew up with is either very old or dead. He carries this immense amount of tragedy around with him, while at the same time, carries this tremendous amount of responsibility of being the only super-soldier that America created. He has to live in this world thats so different, but still fairly similar there was just as much political corruption in his day, just as much weirdness between government and industry and the military-industrial complex starting in the early 1900s.
Cap has so much fertile stuff that you can do with him without becoming a political rant. Plus, its a superhero comic at the heart of it. It cant be just about the politics anymore than it can just be about the icon. It has to be fun to read.
But I love the tragedy of the character Im just that type of writer who grooves on him being alone, and seeing what hes seen.
http://www.newsarama.com/pages/Marvel/Bru_Cap.htm
This run will be bigger than Jesus.