and looking at the After-tax Lease & R&D adjusted margin, The software industry is at 24% (8th place) and the Insurance industry is at 11.51% (37th place).
You can drive the cost of healthcare up without having large margins
Just like Hollywood never makes a profit, you can't use profit margin to measure what the cost savings would be in moving to national healthcare system.
For example, using the data from: http://pages.stern.nyu.edu/~adamodar/New_Home_Page/datafile/...
and looking at the After-tax Lease & R&D adjusted margin, The software industry is at 24% (8th place) and the Insurance industry is at 11.51% (37th place).