In my view, power consumption isn't relevant to a desktop or workstation (and increasingly, desktop machines are workstations since almost everyone uses laptops instead). When I'm plugged into a wall socket, I will take performance over efficiency at every decision point. Power consumption matters to the degree that the resulting heat needs to be dissipated, and if you can't get rid of the heat fast enough, you lose performance.
There is a whole universe of good-enough desktop computers that doesn't care that much about performance, but where power consumption is important, because it makes the computer bulky, noisy, and expensive.
I'd love to have a Xeon 6, a big EPYC, or an AmpereOne (or a loaded IBM LinuxOne Express) as my daily driver, but that's just not something I can justify. It'd not be easy to come up with something for all this compute capacity to do. A reasonable GPU is a much better match for most of my workloads, which aren't even about pushing pixels anymore - iGPUs are enough these days - but multiplying matrices with embarrassingly low precision, so it can pretend to understand programming tasks.