In an interview with EW, Wonder Woman screenwriter Allan Heinberg explains the key elements that started the first world war in the early 20th century are somehow starting to reemerge in this day and age.
Wonder Woman offers a fresh take on that base level superhero story and it helps inspire people to also do good because it is the right thing to do.
The parallelism between the predicament in 1918 makes the film’s narrative much more relatable despite its fantastical aspects.
In addition to that, the film obviously tried to emphasize her humanity as much as her nifty gadgets and immortality.