Shouldn't this fact be celebrated rather than shamed? PCSX-Rearmed gets immense validation, and Sony doesn't waste years of engineering time reinventing the wheel.

As I said right above, (https://news.ycombinator.com/item?id=22759876)

I think it's not that easy. Not that corporations like Sony are necessarily lacking, but the greatest emulators are works of art, some masterpieces of reverse-engineering.