At my work place, hard drives and SSDs are never handed over to anyone outside the organization, due to security concerns. When drives are replaced, the old drives are destroyed in some huge shredder; likewise when computers are to be discarded, the drive is removed and destroyed. I don't see how a modern Mac would fit into that - since nothing can be removed, any failure in a Mac would mean the whole computer gets destroyed, as our internal IT cannot fix it and they are not allowed to send it to Apple with the drive included.