How about individuals? Outside of hackers with their 0-day exploits. Do you or anyone you know have a software that gives an extreme edge and you keep for yourself?
Those organizations are willing to invest money into software that makes them better at what they do. It’s not magic, it’s not secret. It’s just that at large organizations, it’s easier to justify writing pieces of software that have seemingly-small impact because that total impact is so large at their scale.