Here is a theory: People who attest to make decisions based on facts are probably,* not actually making decisions/actions based solely on facts.
1. Everybody has emotions and reasoning capabilities.
2. Emotions affect decisions/actions, on a ‘below the surface’ sort of level.
3. This is part of being a whole person.
It can be an interesting puzzle trying to discern the ‘underlying issues’ which are affecting the facts of a decision/behavior.
*Note: ‘Probably’ excludes things like buying the less expensive chicken to save money. This is an example where there is not a significant emotive component to behavior.