The seven major diseases are:
Cancers: 10.6 million cases (3.6% percent of US population)
Diabetes: 13.7 (4.7%)
Heart Disease: 19.1 (6.6%)
Hypertension: 36.8 (12.6%)
Stroke: 2.4 (0.8%)
Mental Disorders: 30.3 (10.4%)
Pulmonary Conditions: 49.2 (16.9%)
Total Reported Cases: 162.2 million (55.8%)
United States Economic Impact 2003 (Annual Costs in billions)
Treatment Expenditures: $277.0B
Lost Productivity: $1,046.7B
Total Costs: $1,323.7B
If we are able to cure those diseases or greatly reduce their occurence with infrastructure changes (getting rid of coal and oil usage) then we are looking at massive economic benefits in the United States and the world.
Trillion mistakes from bad societal choices.