Companies are also made of non-people systems, indeed the system is what distinguishes a company from just another collection of people. People don't need management so much as systems do. Management's job has to be to improve the system. You can optimize your people as much as you please, dealing with incentives, bonuses, punishments, team placements, making sure everyone is "doing their job", "getting along", etc., but none of that matters in the end for quality and efficient production if the system itself isn't stable.

Deming understood this, his management ideas that transformed countries have yet to break into software. https://maaw.info/DemingsRedbeads.htm is a starting point into the primacy of the system.