In your opinion, what is the single most significant aspect of humanistic motivation that differentiates it unambiguously from motives derived through Maslow’s hierarchy and through behaviorally learned motivation?

In your opinion, what is the single most significant aspect of humanistic motivation that differentiates it unambiguously from motives derived through Maslow’s hierarchy and through behaviorally learned motivation? How can motivation be augmented without relying on increased rewards or reduced discomforts? Why?