Most slaves ran away relatively short distances and were not trying to permanently escape from slavery. Instead, they were temporarily withholding their labor as a form of economic bargaining and negotiation.
The answer is the stage of viewing morality as dependent
upon our social roles and relations. Gilligan made her own stage theory of
moral development for women, for Gilligan, the evolutions amongst the stages
are fueled by changes in the sense of self rather than in changes in cognitive
capability.