Replace 'computers' with 'open source software' and you are something closer to an uncomfortable truth. Open source has been critical to the advancement of our world but people who go out of their way to use and encourage open source past the basics (even fdroid or Firefox not even getting to hardware and full software stacks) are treated as oddballs even by the tech community.
Please enumerate the demonstrable advancements of society attributable to open source software. Edit: lots of downvotes, no credible responses. Guess y'all are stewing in your own cognitive dissonance?
With proprietary OS, all this hardware would be trashed. It would go in waste dumps or poor countries to be dismantled at high health and environment expense. And I would buy new hardware requiring more nature destruction with mining of rare materials. Finally this additional investment would decrease my financial capacity to do other things.
So to make a long story short, the many (millions?) people preserving their hardware investment with open source software are saving environment, health and money to a large extend.
And last but not least, they weaken software company monopolies, which can only be good for society as well.