Anyone with Se in the ego has a desire to extend their personal control beyond themselves. If Ni creatives, being weak in Se but still valuing it, desire this same control (which, valuing Se, they probably do), they use excessive levels of whatever Se egos know how to use proper amounts of.
Eights need to extend control to others, because otherwise, they lose their personal freedom, something they cannot do without (this is obviously part of the Eight's fixation, of which it's a task to get rid of). I just can't see someone who doesn't want to extend their control beyond themselves as an Eight. And if they don't, that means they're healthy. Very healthy. So, what, only healthy Eights can be LSEs? What if the Eight becomes unhealthy? Does that make them change type to a more controlling one?