ego
Ego is a funny thing. Most of us, when considering our career or what ever we do, like to think we are just a bit above average. It's human nature. And we tend to look for those things that will substantiate that assessment.
A pilot might think of himself as being good at approaches. The evidence that supports this, in his mind, could be the small number of times when a go around is needed.
Such a pilot has self programed himself for a crash.