Because that is the definition of those words.
those words were used to describe a keratin placing of higharcy, they mean what they mean.
Just how loose means loose and tight means tight...it is just what it means.
This question is out of context if you want a better answer...explain to me what you need help with.
Some examples of good trouble today would be all those protests for equality because even though a lot of them get arrested its for a good cause
D. Language that exaggeratessocial norms