I see your point and it makes me think of the bumper stickers that say, "LOOK TWICE. MOTORCYCLES ARE EVERYWHERE." It would help if there were an organized effort to make people think about cyclists. I think it also warrants a PSA.
In the Minneapolis/St. Paul area, there is. There are a lot of Share the Road signs, window stickers, etc., as well as other things that are either intended to raise visibility or have the effect of doing so (e.g. the bright green NiceRide bicycles everywhere). The City of Minneapolis and the Met Council (metropolis-area inter-city council) are heavily invested in biking, and there are additional movements such as Bike Walk Twin Cities which engage in regular outreach, visibility, and education activities.
In general, the Twin Cities are doing an excellent job of addressing bikeability from many angles.
