Private Health Insurance Profit Margin is 3% - how much lower would the Socialists Democrats like it to be?

Do you think the waste from Government Run Health Care would be lower than 3%? I know, I know - Government waste doesn't exist, right?
--------------------
the profit margin may be only 3% (though I doubt it), but their administrative costs are about 35%, versus about 4% in a publicly run agency. That's a lot of savings.
Source