>that have served humans very well since the dawn of time.

Except none of this scales in the modern world beyond flat small orgs in homogenous high trust cultures, basically modern tribes.

If you're a large org with diverse people from everywhere and you empower everyone down the ladder to hire the people they trust, they'll just end up gaming the system or hiring their friends and family and the org fails from nepotism, corruption and cronyism.

It's not like we don't have enough examples of this happening everywhere in the world, and why most places have official hiring policies against this behavior, or policies to obfuscate connections from the hiring pipeline to make sure people get in exclusively on merit.

It's also why socialism is only financially viable in small homogeneous communities (like the Amish for example) where everyone adheres to the social contract of contributing to society more than they take out, and is kept accountable by the ingroup to be honest, but fails at a nation level where everyone including the government in charge of managing it tries to defraud it or game the system in their favor taking out more than they contribute, leading to constant budget deficit and ultimately collapse (see EU state pension systems)

But yes, fully eliminating nepotism and cronyism via rules and laws is nearly impossible due to human own-group bias, so networking will always be a huge asset.

Although I might know a solution, hear me out. I have fond memories of being part of this amazing private torrent tracker back in the day, that was 100% invite only, and the way the community was kept honest and accountable to the spirit and the rules, was that every person was responsible for the people they invite, so if their invites would commit a bannable offense, their parent who invited them would also got banned, meaning people would be very selective with their invites, biasing more towards meritocracy rather than nepotism or selling their invites online for cash which was common back then. Feels like something that could scale IRL as well. You hire your friend that turns out to be a shit employee, you're out the door along with him.