Hmmm... Good question, Nickolaus...
The impression I've gotten - and I was bullied/dragged into the Watchtower Society by my parents - is that the religion/sect/cult tends to attract people who are a bit 'off'... [Sorry 'bout that, fellow posters!!!]
In other words, the 'susceptibility' to being indoctrinated by a cult varies from person to person, but there are some common points. Some of the 'common points' involve (1) being somewhat unable to manage one's own life... (2) having difficulty surmounting the normal problems and issues, fears and concerns, that so-called "Worldly" people have... (3) being somewhat naĆve and easily led... (4) having difficulty facing their own mortality... (5) lacking intellectual curiosity... (6) craving the certainty of religious dogma as opposed to enjoying the somewhat chaotic progress of scientific advancement... (7) thereby fearing higher education, which tends to lead to.... (8) having a deprived lifestyle - deprived financially, deprived of immediate, tangible security, deprived of greater mental and emotional freedoms, deprived of the right to natural, true human curiosity.
All of those characteristics - and that's just a sampling of my perceptions of the "types" usually found within the Jehovah's Witnesses - tend to create a group of people who resist change, lack true discernment [sorry! JW 'buzz' word...], are not really introspective, fear actual scientific advancement, and develop a tight, cramped, stingy internal and emotional climate.
Which means they're NOT a group that I would enjoy associating with - nor did I ever enjoy associating with them, while I was yet 'in' the religion.
As to their financial dishonesty, that is a phenomenon that I observed, too. I'm positive that derives from the cramped, poverty-stricken lifestyle that the Watchtower Society [insanely!!!] requests of its followers...
Zid