EIIs have a natural understanding of people's inner makeup and see what can be done with that makeup to bring them closer to ideals. EIIs have a very well-developed view of what people and relationships should be like and are able to help others reach those ideals.
EIIs understand people very well. They often give good advice, and have a strong understanding of the inner workings of even the most complicated minds. They have well developed ideas concerning ideal emotional states for individuals, and always have advice as to how an individual can reach that ideal.
One of the largest complaints of EIIs revolve around the idea of "wasted potential." A lot of their neuroses, and "drive," come from fears that they are not achieving the maximum possible ideal in a certain field or area of life. Unlike IEEs, though, EIIs consider "leveraging potential" more in terms of depth - mastery of one or several specific areas - rather than breadth.