Didn't that single event have far reaching effects on American and worldwide culture? In this case it ended up being positive in my opinion(helping develop hip hop and rap through stolen DJ equipment[1]), but there's no guarantee that a similar event would also be positive. That is especially the case if an actor is trying to cause as many problems as possible.
[1]https://en.wikipedia.org/wiki/New_York_City_blackout_of_1977...