Data visualization primarily benefits the understanding of huge data sets easily, and can highlight insights that simply are not readily seen in the numbers. Subsequent benefits include:
Improve future understanding, planning, and predictions
Improve user and audience attention towards data
Share informational insight amongst teams and departments who can benefit from insights, but are not experts in specific topics, e.g. visualized website analytics for marketing departments
Automated data visualizations reduce data scientist overhead, allowing them to focus on innovation rather than mundane tasks
Read actionable insights quicker which lead to performance fixes or improvements