Wonder Woman being successful is important for women because that character really is the only top-tier female superhero in comics that approach the level of star characters like Superman, Spider-Man etc. and has held her own in a longstanding solo comic series There are other great female comic superheroes but most female characters are part of a team like X-Men or Avengers (Storm, Scarlett Witch etc) or just aren't on the same level of popularity as Wonder Woman historically (She-Hulk, Supergirl etc).
Why is it important for women that there be a top-tier female superhero though ? Can't we focus on something less important like... I don't know... pay equity ?
I really hate all of those movies by the way, if you can't tell.
If the movies were more relevant to culture then I might have cared more.
Why aren't there more female themed rollercoasters ?
http://www.ultimaterollercoaster.com/coasters/browse/a-to-z