If 100 million people each save 1 cent because of your work, you saved 1 million in total, but in practice nobody is observably better off.
https://en.m.wikipedia.org/wiki/Synchronous_grid_of_Continen...
Also, if you micro-optimize and that becomes your whole focus and ability to focus, your business is unable to innovate aka traverse the economic landscape and find new rich gradients and sources of "economic food", making you a dinosaur in a pit, doomed to eternally cannibalize on what other creatures descend into the pit and highly dependent on the pit not closing up for good.
I admit my opinion is not based on first hand knowledge, but I have for years worked on projects trying to address poverty at different parts of this planet and can't think of a single one where this would be even remotely true.
My opinion, however, is based on first-hand knowledge. I've been the kid saving those pennies, and I've worked with those kids. I understand that in the vast majority of cases, an extra penny does nothing more. That isn't what your original comment above claimed, nor is it what you've claimed here. My counterexample is enough to demonstrate the falsehood. Arguing that there are better ways to distribute these pennies is another matter, and I take that seriously as well.
Assuming a wage of $35/hour, each second is worth 1 cent. To save 1 cent you only need to reduce the time spent waiting for computers by a second across the entire lifetime of that person.
Now here is the beauty of this. There isn't just a single guy out there doing this. There are hundreds of thousands of people, possibly millions, doing it.
If society was a giant hivemind, then economic viability would take precedence over personal profit. Meanwhile if society is a bunch of isolated individuals, economic viability would take the backseat. So this tells us more about the limits of human psychology than it tells us about economics.
Obviously not if you are doing for your own fun or just improving the state of art.
You don't need the effect to be observable on an individual level
It's something that is worth an engineer's time
