No this is not a compound sentence
Gender, isolation, and justice. Gender because the men just gather evidence on the case while the women try to understand the pain that drove Minnie to kill her husband. Isolation because Minnie is isolated from family and friends by her abusive husband. And justice because the men and women have different ideas of the justice system
Passive voice is sentence construction because the subject is placed to the end of the sentence and thus acted on rather than acting. For example, the dog bit the boy in passive should be, the boy was bitten by the dog.
Passive voice is a useful tool in writing when the writer wants to emphasize that someone is receiving an action and not doing it. For example, Cyrus repaired the bus here bus is the object. In passive voice it should be the bus was repaired.
The author argues for greater recognition for hard working individuals and fewer awards for failing individuals