That doesn't really justify the constant derision of the Ferengi, but it clears things up a little. They act essentially like humans act, which makes it easier for viewers to identify with them, but isn't all that imaginative. Starfleet pays Dax, but they don't pay Sisko. Must be murder on the accountants. For example, take email.
Email is a form of plebian power.
They say stuff they would never say to that person's face. Because they have suddenly have the power to do so. On to the questions . . . The aliens duck and cover as well. Here's the question.