Models of cognition involve a value function, a dopamine circuit in humans. (See, for example, the model in my blog of 1 Sept. 2012) The goal of any intelligence is to maximize rewards. How intelligent you are depends upon how good your value system is. If you have bad values you make bad decisions and get fewer rewards. Doing science promotes and develops some of the values which we then apply elsewhere in life, things like evidence-based belief.