Video games are like any other piece of art: They bring joy and excitement. Sometimes, they promote negative messages. But that's the fault of the people who make and consume it, not the medium.
Video games taught me that heroism matters. Final Fantasy IV taught me that a true Paladin, a truly good and heroic person, is defined at least as much by when they don't use violence as when they do. Terranigma reminded me that doing the right thing sometimes means standing up against your own people and often doesn't have great rewards. Illusion of Gaia taught me that a world of adventure is out there but there are real costs to exploring it, and what matters is how you protect your friends and respect the people you meet. Demon's Crest taught me that the most interesting people are the ones that have a passion, not those who want to be rich or powerful. Final Fantasy VI taught me that sometimes we let politics obscure the real enemies, and that war produces monsters that can end the world. Chrono Trigger taught me that what you do when you are vastly outmatched is what defines you. Chrono Cross taught me sometimes you have to stand up to everyone.
I think when Western games begin to really have stories that talk about the human condition ([i[Spec Ops: The Line being one of the rare examples) the way Eastern games have so often been able to do (even as they all too often sacrificed choice and agency on the altar of story) that we'll enter a great period of art.