An ancient Italian proverb state "poca brigata, viata beata" (small brigades makes wonderful life's), more prosaically in societies of any sizes we have various kind of individuals, most are "good" some are not. As the society grow the slice of "bad" Citizens cohort can grow enough to unite against the others.
That's happen with organized crimes as well as élites (witch tend to evolve toward dictatorship witch actually is organized crime), meanwhile "interprocess communications" start to exhibit more and more issues, hyper-subdivision of labors, made possible by the bigger size, remove large slices of generic knowledge so makes people fragile, for instance just look at those who live "in nature", they mostly know what to do if a tree fell on the road during winter, how to fix some plumbing, change a tire etc, nothing special, just generic knowledge. Those in big cities tend to know far less, so you can tell them that a broken plumbing joints means a 300€ complex work or that there is or not an immediate emergency of some agricultural productions etc. On scale that means it's easier to make people believe what some PR what they believe AND peoples are far less "adults" because not having a large slice of generic knowledge they can't much stand on their own feet depending more and more on third parties who tend economically to concentrate in oligopolies.
So yes, there are size limits, I can't really tell where is the threshold but there are different many thresholds...
That's happen with organized crimes as well as élites (witch tend to evolve toward dictatorship witch actually is organized crime), meanwhile "interprocess communications" start to exhibit more and more issues, hyper-subdivision of labors, made possible by the bigger size, remove large slices of generic knowledge so makes people fragile, for instance just look at those who live "in nature", they mostly know what to do if a tree fell on the road during winter, how to fix some plumbing, change a tire etc, nothing special, just generic knowledge. Those in big cities tend to know far less, so you can tell them that a broken plumbing joints means a 300€ complex work or that there is or not an immediate emergency of some agricultural productions etc. On scale that means it's easier to make people believe what some PR what they believe AND peoples are far less "adults" because not having a large slice of generic knowledge they can't much stand on their own feet depending more and more on third parties who tend economically to concentrate in oligopolies.
So yes, there are size limits, I can't really tell where is the threshold but there are different many thresholds...