John Berry's letter typifies the right's obsession with their perceived victimization and the supposed unfairness of the media. If Berry thinks there wasn't significant vocal outrage about Weinstein, has he been reading the paper or online publications or watching TV or following progressive commentators on social media platforms? The outrage has been non-stop and has spread to others in film/media.
The wealthy elites that make up the Trump administration apparently believe the rules, like taking government aircraft for personal trips, don't apply to them. 
Hollywood celebrities weren't elected and their behavior is subject to criminal and civil laws, as we've seen in the case of Roman Polanski and others. Trump on the other hand is elected. He represents the nation and its people and should be held to a higher standard. So far he, his family and members of his cabinet, with a few notable exceptions, have tarnished their offices and engaged in reprehensible, if not criminal, behavior.