Once we're in debt, do we stop eating? Lines like corporations are the job creators, is nonsense. Corporations won't create jobs until they see an upswing in the economy because they won't incur costs unless they see some net win, ie employing this person will generate more income than cause expense.
Employing causes expense. One of the ways to improve the economy would be to fix healthcare. Providing employees with healthcare is expensive. Many countries all around the world prove that universal healthcare is much more cost effective than the system in place in the US.
Government is the only entity obliged to stimulate the economy when the economy is bad. Corporations have no incentive to do so unless government does so.