One of the key differences between senior executives and junior employees and managers comes through in their perspectives.
Senior executives (even those who like to be micro-involved and have a strong grasp of the details) operate at a strategic level. They think in terms of overall costs and risks in context of potential ROI (Return On Investment). They look at the big picture.
That's why it's so important to avoid sharing information with them in a way that is strictly limited to a single project and its operational/tactical context.