We're picking up pennies on the sidewalk. Each individually is valuable, but there are just so many of them that every day we go home with the overwhelming majority of them go uncollected. And occasionally one is made of gold.
FWIW... if it takes you all of (say) two seconds to pick up a penny and put it in your pocket, that works out to 18$ an hour, tax-free. Not bad. Nor world-changing.
The fact that we're still relying on a human brain having a perfect mental model of the tens of thousands of lines of code he wrote, interacting with the million ones other people wrote, is baffling.
At this point i consider it a miracle things are still working about fine.
(or the old story about throwing back starfish)