Because it's a visualization. The data is presented in a way where its easy to compare multiple values as they all have the same scale. A table is just raw dat

Because it's a visualization. The data is presented in a way where its easy to compare multiple values as they all have the same scale. A table is just raw data so then it's not a visualization. And for bar charts: I don't think showing the derivatives and silver on a log scale chart makes them very easy to compare.