Just as an example since I didn't include one before: Which of the two below images using different algorithms is correctly tone-mapped? Do we care more about showing the details of the car and the driver or do we care more about the rest of the scene? It's simply not possible to decide which of these is better without context, which an algorithm will never have. A human watching the scene can make that decision, or pick something completely different.
https://user-images.githubusercontent.com/41094733/105145848...
https://user-images.githubusercontent.com/41094733/105145851...