No, actually he should suffer the same consequences that others of his status (but not his caliber) have suffered: rehab. Oh waitaminnit, he did that voluntarily. Downey had to be convicted before he went, and I don't think he was taking whatever he took for "the pain," unless it was the pain of less than stellar appearances on Ally McBeal.
Did Imus ever go to prison? Hmmmm, don't think so.
And the "100 pills a day?" A doctor called in locally and stated that this would be "incompatible with human life." But hey, if Imus wanted to prove him wrong....