Logical fallacy/Bandwagon

The bandwagon fallacy implies that one should do something simply because many other people are doing that same thing. While it may seem true enough when not examined, a simple enough refutation of the fallacy would lie in pointing out that at a time not too distant in United States history, it was common to hold other people as slaves, which few enough people today would consider ethical. Bandwagon is a pillar of advertising, along with the /Appeal to Authority fallacy.