That 'this is your brain on drugs' thing with the egg and the skillet was heroin, not crack. I believe they did do a crack update later where the woman took the skillet afterward and destroyed the kitchen with it. To conflate humor and lampooning of those PSAs as not taking the actual drug issue seriously is not wise, though. Many people simply realize how useless, hyperbolic, and ultimately insulting those PSAs were.

If something is scary, you show the thing. You don't make up metaphors. Trainspotting and Requiem for a Dream most likely prevented more people from ever trying heroin than any government-sponsored PSA ever did.