I know you're dead, but we're really understaffed today.

Bad example .... they invested billions of dollars worth of tech to get this employee back on the job

In real life ... they make no investment in their employees, yet they expect them to work at full efficiency even if they are missing a limb or an organ

If it wasn’t for the smell, they’d weekend at bernies your corpse in the Walmart if would make them a buck.
- I'm picturing a Walmart greeter corpse on strings like a marionette...
I think OCP was trying to win private policing contracts in other cities. If they could offer robocops, a LEO who produced measurable better results over traditional police departments they could get more contracts.
So it wasn't really an investment in a worker it was a tech demonstration.
All of that investment was offset by government grants and tax write offs.

I thought that was a major point of the movie.

I agree.
The whole film was dripping-wet with satire, pointing out flaws in the society of the US and Detroit in particular (at the time). OP's remark is just one of many such beats in the film. We're supposed to be both entertained but also moved to do something about how f--ed the situation outside the theatre has become.
Decades later, after hearing this premise break the sound-barrier as it flew over everyone's head multiple times, the good people of Detroit tried to raise a statue of RoboCop in his honor.
- It is planned to be displayed in 2024, at an undetermined location.
  Source: https://en.wikipedia.org/wiki/RoboCop_statue
  It's happening!
- The 2014 remake made sense to me... it was a remake by Omnicorp. They evil corporations won, then they remade Robocop as a 'no blood' 12a. It was a super-dark play on the fact that they couldn't make the original anymore. [edit: added date & link to imdb]
Detroit Jesus died for your sins, was reborn.