Great question. I think its important to remember that the goal of visualization is to provide useful information from relevant data. It does not replace data. I work with made corporate boards. Some love the columns and rows and see charts as a nice-to-have extra. Some depend on visual charts to help them understand key items and make quick decisions. The most important thing if that your visuals tell a quick and easy to understand story that can be easily cross referenced to data if needed.

To many people try to use visualization to show their artful expertise, rather than support data decisions and understanding.

It should also be noted that as you move deeper into organizations, where the use and love of spreadsheets is not as common, visualization provides a way to make complex concepts accessible to those who need the information, but may not understand the data.