Arguments from authority are the "because I said so" argument; the argument that just because someone is in charge, their argument is correct. This type of fallacy can also apply to people who seem believable just because they have traits perceived as positive; for example, "Shelly volunteers at a shelter and is a good person, therefore what she believes about organic food is right." The darkest side of this fallacy is often found in cults, where people fall prey to the tendency to believe people in authority who are charismatic. People evolved to want to exist in cohesive social groups where they can follow a leader. This respect helps keep society together, but it cannot override rational thinking