According to Dr Rudin, the attitude that cognitive bias can somehow be willed away, by education, training or good intentions, is still pervasive.
That particular attitude is still pervasive on Less Wrong! In fact, it is a somewhat simplistic version of the raison d'être of this community (not to mention the plans for the creation of a new "Rationality Institute").
Luckily, the "attitude that cognitive bias can somehow be willed away, by education, training or good intentions," is fairly well justified, and there are signs that these is lots of low-hanging fruit in this area.
An example of real world problems from cognitive biases:
Forensic science - Ignorance is bliss
Hat-tip to Bruce Schneier.