The thing is - everyone has worked with someone like that.
Opinionated, bossy, head girl, queen bee, top dog, bully... whatever you call them, these people tend to strut around as if they are Very Important and are the only ones with relevant opinions - and make damn sure everyone knows about it.
Generally (I have found) they are definitely the empty vessel that makes all the noise, and people breathe a sigh of relief when they leave. Even people you thought were their number 1 cheerleader/knew them to be shagging in the post room behind their wives back.
Why? For an easy life, don’t want to be the ‘one’ who says anything against a ‘popular’ person, don’t want a fight, don’t really care enough to get into a debate, fear of being the next target. Some people are just horrible in their own right and agree.
Thankfully I have worked long enough to see that what goes around comes around in 99% of the cases. Sometimes you just have to wait a long time for the universe to level out.