@Niklas_L I also believe this is related to the
humans bias for forming tribes. The US Army has researched this:
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.apa.org/pubs/journals/releases/amp-amp0000259.pdf&ved=2ahUKEwjJk-SkyIXwAhVPlYsKHcnxAxMQFjAAegQIAxAC&usg=AOvVaw39jWKao02dp8gfcLmrjV7R
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@Niklas_L Humans perceive only a small group
(~30 ppl) as their "tribe", AKA the "we". The rest is "them". That makes it hard
to build relationships in big organizations.