Heroes do not always stand up so well to scrutiny. That is not to say that Superman really is a high-stakes drug pusher but rather that from a distance (say a pedestal) it can be very easy to concentrate on the concept of a hero rather than the actuality of it and blur the edges a little.
Seeing our heroes for the people that they really are makes their moments of heroism all the more special because they demonstrate just how similar we are to them and that being heroic ourselves is not an impossible accomplishment. Heroes are not heroes 24 hours a day; only when they need to be. The rest of the time they’re mostly jerks like you and me.