I don't think it's the the ruthless securities industry fault; I think the lack of critical thinking skills on the part of most ETers renders them incapable of evaluating whether any belief is plausible. Most seem most satisfied with doing what the everyone else is doing or tells them to do. If anyone here attempts to give a thoughtful, nuanced response to a question or problem they are usually driven out by opinionated hyperposters.
By the way, theres an EXCELLENT book from Oxford press called Traders. Some very serious stuff in there about the mindset of the trader, mostly focusing on prop for big houses, but applicable to all. You can check it out on Amazon. http://www.amazon.com/Traders-Decis...=pd_bbs_2/102-7051885-7140168?ie=UTF8&s=books