You can use your means in a good and bad way. In German-speaking art, we had such a bad experience with the Third Reich, when stories and images were used to tell lies. After the war, literature was careful not to do the same, which is why writers began to reflect on the stories they told and to make readers part of their texts. I do the same.
Film is the manipulative medium par excellence. When you think back on the history of film and the 20th century, you see the propaganda that's been made. So there are moral demands on the director to treat the spectators as seriously as he or she takes himself and not to see them merely as victims that can be manipulated to whatever ends they have.
I love actors, both my parents were actors, and the work with actors is the most enjoyable part of making a film. It's important that they feel protected and are confident they won't be betrayed. When you create that atmosphere of trust, it's in the bag - the actors will do everything to satisfy you.