You use emacs so why should anyone else need MS Word? A large number of people use word processor software because it has advantages over typewriters or handwriting for their purposes rather than because they lack training in something more esoteric.
To be fair ms word is rooted in a world paper once ruled and the paper/document metaphor is becoming increasingly less relevant.
I used to use it all day every day and now i use it once a year maybe (often for government related things, coz theyre often the only ones still asking me to fill out and sign PDF forms).
Most office functions are better supplanted with a decent cms, spreadsheet, email and something to let you create forms for people to fill in.