"They" don't "care" about anything. It is a stateless computational run across thousands of semiconductors. There is no objective this software has other than the computational function completing. To care would mean the model would have a level of discernment that goes along with sentience.
You are kind of ignoring the Dennett's idea of different stances: https://en.wikipedia.org/wiki/Intentional_stance
You're looking at humans from intentional stance, but at LLMs from design stance, which would be a form of categorical error.