How can we say that TV ads are powerful but the moral content of shows is irrelevant?

I find this rather difficult to fathom given that violence has been part and parcel of human entertainment from its earliest forms. While the nature of the violence has changed somewhat it’s always existed. Typically we wouldn’t want our heroes to be like Gilgamesh. You know, raping all the maidens of the city because he’s too powerful for anyone to stop.

Odesio