For regular people, I would imagine it would be related to rationalization making so that they could continue to do what they like to do and not feel like they are doing something wrong.
For scientists, they have a demand to think things through more thoroughly. Just because an animal looks the way people do when they have emotion X, doesn't mean the animal actually has emotion X. A good example is dolphins. They look like they are happy and smiling, but that is just the natural resting shape of their snouts and face. House cats may seem affectionate by rubbing on people's ankles, but cats have scent glands in their cheeks and will rub on thing to also mark their territory.
In reading the scriptures, there are two kinds of mistakes:
One mistake is to cling to the literal text and miss the inner principles.
The second mistake is to recognize the principles but not apply them to your own mind, so that you waste time and just make them into causes of entanglement.