Come on, look at all the businesses and what's really happening in the space you're commenting on. That laptop literally means nothing.
The comparison probably needs to be: Running that old NetBSD machine for a few hours a day, worst case about 40 while I work vs. producing an running a brand new laptop.
If we're talking desktops, then many older machines have 2-300W PSUs, not even enough to power a modern graphics card (I know, an Nvidia card isn't running 600W all the time).
And on a larger scale, you could use your dismissal against almost everything. Every part of society (and businesses are part of society) can think ‘that thing I do means literally nothing when so much else is going on!’ about almost anything.