I remember when Exxon Corp. made a $10 billion or so profit this year. There was a rather big fuss and stir about it especially since oil prices had seen such large rises. (But) I do not remember when the heart industry pulled in around 2 trillion dollars a year, especially since medical prices have seen such large and consistent rises over a period of two decades or so. What do you think the heart industry netted in profit?
Try using Google or other search engine to get some yearly data on the yearly income of this business.