On a local scale, this makes sense. Make the units of data consumption match the units of data capacity. The files are measured in powers of 10, the disks are

On a local scale, this makes sense. Make the units of data consumption match the units of data capacity. The files are measured in powers of 10, the disks are measured in powers of 10. If the disk was sold on its power-of-2 capacity, then display the file sizes in their power-of-2 sizes. On a larger scale, this is a giant mess. Apple is the only one who'd actually try and fix this. Both in terms of power (hardware & software) and in clout.