I'm not so sure that profit is always the only motivator.  Remember a few years back when an apparently profitable out of state grocery chain pulled out of Eugene because it couldn't find a space that fit it's "business model"?  Aetna may well pull out of markets because there isn't enough profit,  not just because of losses.  And the people who own and operate American corporations have been vindictive as hell ever since the days when workers and consumers gained some rights and control over business excesses and abuses.