Yeah this is my take too. Comic book writers aren't very good at being subtle, so it ended up being Reed Richards and Tony Stark become supervillains for a while. The whole debate about the laws were rendered moot when they made a Thor clone and a negative zone gitmo.

The movie had put the debate over the laws a little more prominently, and it was more about the character's differences in how they saw things. Cap favouring individual responsibility over instituitions made sense given the whole hydra infiltration. Stark not trusting his own judgment makes sense because his story started with almost being killed by a weapon he invented. Different experiences led to different conclusions and neither of these guys turned into super villains.

Nice little touch to have an actual villain manipulating things in the background and almost getting away with it because the heroes were too busy fighting each other to even notice him.