The text emphasizes that the strength of an organization lies in its people who not only know how to perform their work but also how to avoid causing harm to themselves, others, or the organization. These individuals are described as reliable pillars.
They are perceptive of risks, prevent conflicts from escalating into scandals, respect the work of others, and can calmly say "stop" when something is going wrong. They are capable of proposing solutions rather than just complaining.
This level of professionalism is not dependent on one's position but on understanding how the system works, not just technically, but also interpersonally.