I think a large part of the problem is that people tend to identify with their governments and thus overestimate how much government regulators will act in their interests.
On the other hand, I think many people focus only on poorly performing regulation and thus underestimate how much government regulators act in their interests.
The last point reminded me of speculation from the recent LessWrong article Conspiracy Theories as Agency Fictions:
Before thinking about these points and debating them I strongly recommend you read the full article.