In school, I learned to use 10 cent words, so instead of saying: (updated: from a paper that says a scientist doing experiment with fish would make it complicated to say:)
All biota exhibited 100% mortality rate.
All fish died.
which is plain and simple, and gets the idea across, so that people understand what you are saying. But in the real world, time and time again, verbally or written, I see people higher up purposefully using $2 words, to convey that they are educated, and to convey they can use difficult words that you don't understand, and suggest possibly they can do things that other people cannot, so they have power over you (maybe to write something like that to the CEO or board of directors, and if you are against him, the board of director probably won't believe you or not on your side when you write something all with 10 cents words versus his $2 words every where).
So, was I too naive to believe "use 10 cent words"? The world may not be simply about "getting ideas across"? What might be an more accurate descriptions of the use of 10 cent words versus $2 words?