So many people making claims that power utilization doesn't matter. Perhaps not to them, but it does for many.
Energy prices are getting higher and higher in many parts of the country, heck in the world.
Devices that consume more power generate more heat. So now one is likely using more electricity to keep their home or office cool and comfortable.
Noise matters for many people using workstations. Running a system at full tilt can be irritating, distracting, because of the active cooling.
Some people are just simply conscious of how much electricity they use and want to have a lower environmental impact.
And then there's the large scale matter. One workstation might not be a big deal in terms of energy usage, but millions of them absolutely is.
Saying no one cares how much power a workstation uses is disingenuous.