It's not the term you used but rather that you're bringing personal finances into the discussion and talking about those who don't clear their trays as if they're some sort of oddity we should psychoanalyse to further our human knowledge. This thread is getting a bit wacky.
What personal finance? They posted those info themselves.
Psychoanalysis? If you go to supermarket, woollies, why do you think they put the bread section near the lollies section? The layout in the supermarket or dept stores were designed based on human behavior to maximized sale.
Why some school systems (montessori, etc) work for some children and not the other?
And why some investments work for some people and not the others?