Se type order, force or inspire Ni types to help and move their hands to support his cause or ideas. Also IEI needs SLE imposition and force to comply. Part of it is related to admire the strenght and intelligence of SLE and their ability to not turn away or back from IEI provocations and don't be deceived by their tricks.
Edit. Also most of the limitations some of the IEIs perceive in themselves are actually mere tricks of their own minds and fear. I know IEIs who have been raised or influenced for extended periods of time by Se types and they are perfectly capable and normal ppl. At some point it seems they need the influence of Se to develop properly. Probably something similar happens with most types.