if you sit that SLE down and teach them Socionics, they either:
a) realise *why* they find it hard to build and maintain deep relationships, and can further develop themselves while forgiving themselves for not 'understanding Fi',
b) they realise connecting to people is all bull-honkey and they should just keep shooting their Se-jizz everywhere.
Thing is that self-reflection is a hard thing, and it's even harder if you've never been raised to realise it's important. I'm not ragging on SLEs or Fi itself here either, because anyone one type can grow up to be a real terrible person if circumstances allow. I think it's important that people know about Socionics, because any methodology that can get people to understand how others 'work' is important. But like anything, it should come with the stipulation that you should use it responsibly.