We are quite unable to be objective about ourselves. More subtle is the effect of the system we are in. A system cannot understand itself. But when we are inside a system, we are part of it, and cannot understand it. This is why Profound Knowledge has to come from outside.
Insight is more important in applied science than in pure science, for two reasons.
In pure science a wrong theory will always be corrected eventually, as every other scientist will be delighted to disprove it. The manager has no check of this kind. Alternatively, with some change in the way the idea is made operational, it may succeed. A new idea is always at a disadvantage compared to an old, well tried idea, so we must be prepared for initial disappointment. Another reason why insight matters more in business than pure science is cost.