Originally Posted by
Prof. Warren
Because he's been framed for killing Ross. Or are you asking why Steve isn't universally accepted as a hero?
I think the obvious answer is that SE left a lot on the table that any writer would want to continue to explore.
Also, most of the best Cap stories tend to have him at odds with the government, either due to elements within the government conspiring against him or by an outside force making him look bad or due to his own inner conflicts with the current administration.