I've been in some sort of office environment as a job for almost 30 years now, starting as a Data Entry Clerk at a bank when I was 19, and I've never really witness the stereotypical "brown nosing" of the boss like you would see in TV or Movies.
Whenever I would hear about it, the accusation is usually from someone that half-asses their job and are jealous of the guy/girl that is actually doing their job to their full potential, and just being nice to their superiors.
You gotta laugh. That is the one thing at the end of your life you will not wish you did less of.