That's one of my pet peeves. This literally is goes in the opposite direction most of the time - the prettier the graphs presented, the more useless they are. They show less, take more space, omit units, scales, or well... even useful data. Not to mention connecting things that should not be connected, or drawing areas where they shouldn't be, etc.
It's almost like if some people wanted to screw over their customers on purpose. But, I guess, it's more of people who don't know what they're doing selling things to people who don't know how to use them.
The intersection of those too groups is too small to make any difference, thus tools will be heavily optimized for one of those.
http://www.darkhorseanalytics.com/blog/data-looks-better-nak...