Rather than feeling contempt for loyal JWs, I am inclined to feel pity.
People like my grandparents, who slaved for years for a WT (not God's) promise of a new world which would arrive (according to the WT) before their natural lives on earth were over, now see that that promise will not be realised. Can you really picture them giving up on the WT church when they spent their whole lives within it? To leave at their old age would amount to calling it all a waste. Not a pretty thought to have, and I don't blame them for shying away from that admission.
As far as the average JW getting bolder and more rude...I chalk that up to the slow subconscious realization that over the years, God has shown them to be liars...maybe in His name...but still liars, and when you've preached a lie as THE TRUTH, as I did, you may end up feeling bitter and resentful. The WT dismisses people and says that they were serving for dates, well, I ask, if the WT wanted people to avoid doing that...why were the dates held out there as an issue in the first place. If someone was serving with a date in mind, ask the WT how that date GOT in that mind. I agree that a person should do good not because of an immediate reward, but to place the blame on individuals when they did what was expected of them is dishonest, and perhaps...immoral??
Farkel makes a great point about how love towards others comes in many forms. To me, it is a great love towards humanity (and self-rewarding) to use whatever gifts we have for a positive influence on those around us, and ultimately, the world at large. Some people are born with aptitude in art and music (art for the ears), and I think it would be an affront to God to dismiss those talents, especially in favor of a life of uninspirational servitude.