In early humans gut reaction was important because it was all we had to make life saving decisions. We still have that tendency toward snap decisions, yet we live in a world with vastly more data, facts and tested hypotheses. There is a reason juries are admonished to wait until they review all the facts available and hear the arguments of both sides before determining guilt or innocence. Shouldn't we use the same reasoned approach in our daily lives when we take positions or feel we "know" what's best? Sure, the gut is right sometimes, but that is not a reason to always accept it blindly while ignoring facts and contrary arguments.
“I don't know if you've ever noticed this, but first impressions are often entirely wrong. You can look at a painting for the first time, for example, and not like it at all, but after looking at it a little longer you may find it very pleasing.” ― Lemony Snicket