Many offices do have motion sensor lights and after-hours HVAC settings, though. Also remote controls/monitoring and modern high efficiency heat exchangers that are many times more efficient per cubic foot.

And when there are tens of thousands of households vs dozens of office buildings in a service area, it's absolutely the households that are consuming the vast majority of energy, so it makes sense to try and reduce the demand where it's greatest.

Both can be wasteful, but you're the one being willfully wasteful.