At 100 watts, humans are fairly economical compute, and we can do physical things. Plus, we can provide human touch which other humans need, and much life appreciates our interaction, as they know we can help sometimes. Plus, elephants think we are super-cute (even though we are messing up the biosphere). And, we can obtain the energy for our compute in sustainable ways. Now, much metal compute exists now, no additional energy needed to create, and it makes a great cognitive exoskeleton.