Why is there so much indifference and/or push-back to using numbers for driving decisions?
Why are experience and intuitions preferred over analytics?
Why are the subject matter experts trusted over hard data?
Why are the proponents of data and analytics not only ignored but have their motives questioned?
The answer to all these questions is: Self interest.
Here is a quote from the book Super Crunchers that nails it:
Traditional experts don’t like the loss of control and status that accompanies a shift toward Super Crunching (Evidence based management). But some of the resistance is more visceral. Some people fear numbers. For these people, Super Crunching is their worst nightmare. To them, the spread of data-driven decision making is just the kind of think they thought they could avoid by majoring in the humanities and then studying something nice and verbal, like law.
The greater its [data driven decision making] impact the greater is the resistance.