Because in most organizations, hiring comes out of HR's budget. Raises come out of departmental budgets. On paper, it looks like it saves money to the accountants.

It's stupid, because companies don't bother to track how much they waste on losing trained employees + damage done by inexperienced ones during onboarding. But that would be hard to track with robotic, sterile metrics, and God forbid executives actually trouble themselves with knowing how their business functions

This is exactly how it was with my grandmother. It was like her mind was unmoored in time. Some days she would be confused because she thought I should be a little kid; other days, she mistook me for a friend of hers she hadn't seen since the 50's