Don't you know all humans are selfish, except JW's of course. The 12-1-04 WT gives an example of a man who owns a real estate business who found a cash box in the one of the houses he was going to sell with $82,000 in it. He was all alone in the house and could easily have taken the money. But he didn't and explained it was because he was one of Jehovah's Witnesses. The article went on to infer that the worldly people would have taken the cash.
My feeling is that most people are honest. I remember reading a similar article in the Awake a few years go about the honesty of a witness who returned someone's wallet and it was only because he was one of Jehovah's Witnesses. A few weeks later I inadvertently left my purse in a grocery cart outside the store, and later got a call that they had my purse. When I picked up the purse, I asked for the name of the person who returned my purse so I could reward him/her. They said it was no big deal. They had three or four purses returned everyday. I thought to myself then, must be a lot of JW's hanging around the parking lot as no worldly person would have returned them.