The dubs can be so judging of a person before they even know the whole story. They claim they aren't but they are the most judgemental people I have come across.
You are right that the average Dub is very gullible and take people at face value when it comes to dealing with wordly people. I learned this the hard way when I left and went on my own.
What did it for me was the fact that the Watchtower has predicted the end of the world many times, always incorrectly, but still act as if they possess special knowledge about the end and still pretend that Armageddon is just around the corner.
Not only that the WT did not even have the decency to admit they mislead the rank and file after 1975 but blamed it all on some overzealous dubs. For anyone that came in to the organization or was born after 1975 don't understand this. I was there and seen it first hand. That was the beginning of the end for me.