The capacity to pick up what others feel and how they view matters, to show real interest in what worries them, pick up cues to what is felt and thought, sense unspoken emotions and listen closely so as to grasp someone's perspective as they themselves see it; empathic leaders work well across backgrounds and cultures and express ideas in ways the other person can take in. Not psyching people out to manipulate them, but understanding how to work with them most effectively.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.