Yeah, Blade Runner was great for the atmosphere, but it didn't really emphasize PKD's overall message about empathy. Robocop came out of that, it was about underlining that message. And yeah it's about a corporation literally taking away a person's humanity, but also removing humanity from society in general.
The US is at war with Mexico in Robocop, but nobody even cares. There's one line where a cop says "Damn! They bombed Acapulco!" the other cop says "So what?", and the first cop says "I booked my vacation there, I gotta call my travel agent!"
It's a world where there's virtually no empathy left, and turning a human into a robot is representative of what corporate culture is doing to people.
Alex Murphy is able to recover some of his humanity, but he doesn't fully escape from the system. He is still limited by the corporation's directives at the end of the movie, but he does have his identity as Alex Murphy in the end, so that's good I guess? It doesn't hold your hand about this, it's a smash cut to the end credits. It's just like "you figure it out!"