It depends on what you mean by "Visualized Data." Do decision makers use graphs, charts, dashboards, etc? Yes of course. Are there some visualizations that wouldn't be of any value to a decision maker whatsoever? Also yes of course. You can't show me a word cloud if I work as a portfolio manag...
I would disagree with the premise that "big data" isn't being converted into valuable information. Modern advertising is being driven by exactly this ability. The problem lies not with the information, or lack thereof, but with the decision makers. Lack of vision at both the strategic and tact...