The problem is that this approach requires well structured data and most corporations have data all over the place, in legacy systems or some half-assed backed solution that kind of works. So even if you provide them with some state of the art platform that pulls graphs out of thin air they'd still need shitloads of consulting and custom made tinkering to make it work.

The other problem is that most executives don't even know what kind of graphs/reports they need. Sure, they can have the classic sales by region and stuff, but the really important things are hidden and require a lot of digging and asking to get to.