I don't think the analogy is very good. Whereas eating a twinkie is clearly not going to benefit your health, with information it's not so cut and dry. A stupid YouTube video might just set of a chain of associations that lead to a new creative project of your own, or useful observations about our culture/technologies.
It's as if you could occasionally reflect on a twinkie before eating it, and transform it into wheatgrass juice as it goes down :P