The developmental relationship
Mentor-mentee relationships are fundamentally different from other workplace hierarchies. Your boss evaluates your performance. Your mentor invests in your potential. That distinction shapes everything about how money moves at the table.
In 1985, organizational psychologist Kathy Kram published Mentoring at Work, the foundational text on workplace mentorship. Kram identified two categories of mentoring functions: career functions (sponsorship, coaching, protection, exposure) and psychosocial functions (role modeling, acceptance, counseling, friendship). Both require the mentor to give something the mentee cannot immediately repay.
This asymmetry is the defining feature. Unlike a colleague relationship where exchange is roughly equal, mentorship is explicitly unbalanced. The mentor gives time, knowledge, access, and often meals. The mentee receives. The implicit understanding is that repayment happens years later—when the mentee becomes a mentor to someone else.
“The mentor relationship is characterized by a fundamental asymmetry. The senior person invests in the junior person’s future, with the expectation that the investment will eventually flow forward, not back.”
Kathy Kram, Boston University
This forward-flowing investment model is why most mentors naturally reach for the check. They’re not paying for lunch. They’re investing in a person—and the meal is part of the developmental experience they’re providing.
Source: Kram, Mentoring at Work: Developmental Relationships in Organizational Life, Scott Foresman (1985).