SLE doesn't give a damn about right or wrong and morals. SLE is just a bit direct and harsh in its speech, and way to communicate with people. The IEI is gentle, tactful and refined, and that's what the SLE needs and admire.
SLE needs to be more tactful about the way they express themselves, even though they are right about defending their terriroty and will, they can be kinda mean doing it. What they need is just to be more tactful and socially appropriate while doing so, and that's how the Diplomatic IEI can be useful.
Then Introverted Ethics are little concern for both types.
I didn't understand the rest of your questions.