Bowlby developed the hierarchy concept to address objections to monotropy. Critics argued that children with multiple caregivers (extended families, kibbutzim, institutional settings) clearly formed multiple attachments, seeming to refute monotropy. Bowlby's response was that multiple attachments were not inconsistent with monotropy because attachments are organized, not distributed equally. The child in a kibbutz has attachments to multiple caregivers but ranks them; the primary figure can be identified through observation of the child's behavior in high distress.
The concept's extension to professional practice is direct. Every knowledge worker has a hierarchy of attachment to her tools and practices. The writer's primary attachment may be to the sentence, with secondary attachments to particular word processors, writing rituals, and subject matters. The photographer's primary attachment may be to the act of seeing and framing, with secondary attachments to particular cameras, lighting conditions, and printing methods. These hierarchies are not stable across people even within the same profession — what is primary for one photographer may be secondary for another.
The AI transition's effects cannot be predicted from the technology alone; they depend on where in each person's hierarchy the technology intervenes. The illustrator whose primary attachment is to drawing-as-craft experiences AI image generation as catastrophic. The illustrator whose primary attachment is to visual problem-solving experiences it as a new tool for the primary practice. Same technology, same capability, fundamentally different position in the attachment hierarchy, categorically different psychological response.
The organizational implication is that interventions must be tailored not to the technology but to the hierarchy. A blanket training program assumes that all employees have the same attachment structure and will therefore respond similarly. They do not. Effective intervention requires understanding where in each person's hierarchy the disruption is occurring — which is work that requires relationship, not standardization.
Bowlby elaborated the hierarchy concept across the Attachment and Loss trilogy, particularly in response to critics of strong monotropy. The empirical research foundations were developed by Mary Ainsworth and subsequent attachment researchers through observations of infants with multiple caregivers.
The application to professional practice is a contemporary extension not present in Bowlby's original work, developed through the integration of attachment theory with organizational psychology and the sociology of expertise.
Ranking, not equality. Attachments are organized into a hierarchy with different positions providing different security functions.
Apex is categorical. Disruption of the primary attachment produces responses of a different kind than disruption of subsidiary attachments.
Varies by person. Different individuals in the same profession may have different hierarchies organized around different primary practices.
Cannot be predicted from technology. The effect of an AI system depends not on what the technology does but on where in the user's hierarchy the disrupted practice sits.
Requires relational assessment. Understanding the hierarchy for any particular person requires actual relational engagement, not survey instruments or demographic assumptions.