Yeah and its a complete pain in the ass. It's funny these people can't do their jobs but they are masters of using HR departments to shield them from their own incompetence.
In my experience managers are utterly horrible at giving early feedback to people who are not performing, and working with them to improve. It is I suppose part of human nature. People think it is awkward to deal with so they avoid it.
You have to consider that for society it is very wasteful to have people live off welfare schemes rather than working. Even if you are not a high performance worker, it is better for society that you are working than staying unemployed.
No amount of feedback can turn a lemon. Also, its not the role of corporations to play makework and pretend they are contributing. So someone gets fired and takes a job more befitting of their abilities... that's not welfare that's just life.
Or are they using reasonable leverage to protect themselves from employers who fail at their jobs (good management, training, obtaining and allocating resources, etc.) or who fire good employees for bad reasons (whistleblowers, scapegoats, to protect the job of the person you're sleeping with, etc.).
You have to consider that for society it is very wasteful to have people live off welfare schemes rather than working. Even if you are not a high performance worker, it is better for society that you are working than staying unemployed.