Pet peeve alert: It's DISCREET, DISCREET.
Outside of the JW's the meaning of this parable is quite different. Any Christian is to be faithful and discreet. What Christian wouldn't want to please God in this way?
http://www.inspiredchristian.org/cyber/050701rf.html
Another pet peeve: Servants serve. They don't boss around the other servants. This alone sets the WTBTS FDS closer to the evil slave.
As an amusing sideline, when I googled "discreet servant", subtracting all the JW entries, I found a gratifying number of testimonials about faithful butlers who served their Kings with discretion and grace. Dollars to doughnuts none of them wrote their own autobiography.
Louis Marchand was a reliable and discreet servant, and he had a warm and affectionate relationship with the emperor. He also kept extensive notes that contradict testimony by one member of Napoleon's court.
http://dartmed.dartmouth.edu/spring03/html/exhuming_bonaparte.shtml
When the new building is finished, modern traders will sit down barely a minute when a discreet servant soundlessly and graciously will serve them a small, welcoming cup of hot tea like the one we drink this afternoon.
http://www.teamuse.com/article_010301.html
While Bromley's official title is general manager and regional vice president of the Four Seasons Hotel & Residences in the city, he generally refers to himself as "butler to the rich and famous." And like any discreet servant, he only reluctantly divulges details of the celebrities, diplomats and other powerful people his hotel typically caters to. "We see some goofy things, but we don't talk about it," says Bromley, with a hint of a smile. A typically demure remark for a veteran with more than 35 years working at some of the world's top-rated hotels. The Pennsylvania native studied at the Swiss National Hotel School in Lausanne, graduating in 1965 and working his way up the ranks.
http://www.bizjournals.com/sanfrancisco/stories/2001/03/19/focus3.html
Harold Brown is a faithful and trusted servant who has worked for the Royal Family for more than 30 years. "He is... everything a butler should be: professional, discreet, dependable. He was always unobtrusively there, and was such a help to Princess Margaret over the years.
"His loyalty to the Royal Family is without question."
http://news.bbc.co.uk/1/hi/uk/2538765.stm
There you have it, some genuinely faithful and discreet servants.