That feeling is peer pressure, and it's found in everyone, as shown by Asch's Conformity Experiment. When we hear a group of people express an opinion, or a figurehead who presumably represents a group of people, we are biased towards agreement. That's because when someone disagrees with a group, it is more likely that they have made a mistake than that everyone else in the group has.

But don't mistake being convinced by valid arguments for being convinced by conformity bias! Properly compensating for conformity bias means not letting groups convince you of things that are false, but if an argument is valid and its conclusion is true, then changing your mind to conform with it is the right thing to do. So trust, but verify; let authors who tell you true things influence you, avoid authors who tell you false things, and sanity-check everything you read, no matter who wrote it.