Well, it's all relative. Assuming all corporations are equally amoral (or close enough), defense means war profiteering, whereas (traditional) media is a blight on our society that has largely abandoned any pretense of social function and actively holds us back by playing on our collective fears.
On the other hand, pharma as a concept certainly needs to exist to save lives. As a Canadian, pharma is not so bad here, but I believe their existence as a for-profit* entity is contrary to the purpose of universal healthcare, which I think is a common enough sentiment. American pharma, however, actively profits from the inequality inherent to the (rather evil) lack of universal healthcare system. Any positives for society seem strictly incidental, as exemplified by the price of insulin.
On the other hand, pharma as a concept certainly needs to exist to save lives. As a Canadian, pharma is not so bad here, but I believe their existence as a for-profit* entity is contrary to the purpose of universal healthcare, which I think is a common enough sentiment. American pharma, however, actively profits from the inequality inherent to the (rather evil) lack of universal healthcare system. Any positives for society seem strictly incidental, as exemplified by the price of insulin.