It could very well be that the media of the Tron world are also partially responsible for creating a near mythological figure out of Flynn as well, not only after his disappearance but during his time as CEO of Encom. I think the intent of the writers was as I indicated earlier to make him a Bill Gates/Paul Allen type of figure and as mentioned Encom is basically Microsoft with the video game revolution being akin to XBOX, etc. I suppose that one could dismiss it as being silly but I find that it works in the context of the film's world, and it is also an obvious way to increase Sam's own statue as Flynn's son. Kind of a Joseph Campbell thing going on in Tron Legacy.