[kareemsabri]

You're correct that Dirty Harry was an explicitly right wing, and borderline fascist, movie. It was originally offered to Paul Newman who passed because it wasn't a good fit for him, but he suggested his friend Eastwood (a Republican) would be better for the role. The bad guy is a "dirty hippie" type, who's played very effeminate as a contrast to Eastwood's hyper masculine Harry.

I don't think that Serpico fits in that tradition at all. It's a story about a whistleblower fighting corruption within the police, and is directed by Sidney Lumet (not exactly a right wing director, thematically). The institution is corrupt, but Serpico is trying to uphold the law not take it into his own hands.

I think RoboCop is taking aim at techno-enabled state power and the military-industrial complex, not celebrating it.