His story could also be a reason why the Watchtower is so against education. For myself I am looking into sociology, psychology, anthropology or philosophy for my schooling right now. Courses like these show you how to think, analyze, rationalize and observe specific teachings and arguments and recognize when arguments are weak or are not being supported. If the Watchtower had many individuals just like the one written here the Watchtower would be in big trouble! The thing is, if Witnesses all went to go get educated they would be advancing their education level beyond that of the average governing body member.
People who are educated will not spend their hours weekly doing studies at a grade 2 level. People who are educated are not going to listen to Stephen Lett and take him seriously for anything. People who are educated are going to recognize the weak arguments to back up their religious views used in Watchtowers and talks. People who are educated are going to start understanding why the Watchtowers "logic" is actually not logic at all and most of the Watchtowers reasoning is based on the foundation of fallacy. People who are educated will sit in the hall listening to the Sunday discourse and actually feel their brain melting into goo as they are listening.
Your friend is a great example of why Watchtower doesn't want success or education among the Witness. If you have these two things you will have no problem walking away from Watchtower. With your own success and education there is nothing you can't do! You don't need to be attached to the Watchtower as your only life line if you have education and success. This individual had a lot going for him. He was educated and used his brain to analyze what was going around him. This is taught in philosophy. He was able to critically form an opinion based on what he had seen and heard. He observed the actions of Witnesses in a none biased way. He formed his own reasoning's WITHOUT having to go to the Elders to help him "adjust his thinking" to an opinion or viewpoint he never possessed.