Is Mayella Ewell powerful?

In a sense, Mayella Ewell could be considered "powerful" while she is on the witness stand because of the simple fact that she is white. In Maycomb's prejudiced court, Mayella's testimony is automatically considered to be truthful—even against Tom's word. Though she comes from the most despicable family in the county, her statements have the power to essentially end Tom Robinson's life. Whether or not her statements are actually truthful doesn't make a difference because the jury is made up of racist individuals who have already decided that Tom is guilty. Mayella's testimony conflicts with her father's, and it is obvious that she is lying, but her white privilege is enough to convince the jury that she was assaulted and raped. Outside of the courthouse, Mayella is powerless. She is an outcast who is forgotten by the community and Scout mentions that she is the loneliest person in Maycomb.