I agree with you up to a point, I don’t think the movie is nearly as clearly rightwing as Nolte is making is out to be. But nor do I think it’s completely value neutral. For one thing it clearly drew analogy of Bane’s “revolution” to the French revolution, which was decidedly a leftist revolution.
Perhaps, it seemed to me to be inspired by the Russian revolution - the kangaroo courts seemed to have the whole "soviet justice" vibe about them.