I'd say in the long term, Obama has been harmful. Along with the Corporate Party media, he has helped to keep alive the illusion of normalcy and choice, while America is being dismantled.
Perhaps the worst aspect for the health of the country is the ever-increasing loss of liberty. What value is business if we live in a Gestapo or Soviet-style police state?
It's now a felony to protest what the government is doing. There have been repeated attempts to plug the last hole in their plans to eliminate free speech -- SOPA, PIPA, CISPA, TPP and more.
Obama has his "Kill List" which includes American citizens. He signed (and Romney would've signed) the NDAA with its tyrannical, indefinite detention clauses for Americans (no charges, no attorney, no trial, no phone call).
The Power Elite who run Washington from behind the curtain of commerce (Wall Street, military-industrial complex, big pharma and others) don't care about America or its citizens.
The second worst aspect for the health of the country is the skyrocketing and Accelerating national debt Bubble. When that pops, and there is no way to avoid it so long as we keep the private Federal Reserve in control of our currency, planet Earth will be toast and America will be ground zero. People will beg for a solution, and the Power Elite already have one in mind -- an RFID microchip that will "solve" all of our problems and keep us safe as slaves to their plutocratic hegemony.
This RFID event was foretold nearly 2000 years ago in Revelation 13. The "mark" of the evil beast of greed. Anyone who accepts that mark will be condemned.
That's who Obama is working for. That's the plan of his bosses.
We've already gone through several of the stages of Germany 80 years ago. Back then, we have only one figurehead. Now, we have multiple figureheads so people think they have a choice. And Germany's economy was limited in scope. The dollar is the global reserve currency. When the Deutschmark became worthless, it mostly affected only Germany. When the dollar becomes worthless, we will have worldwide chaos. And the four horsemen of the Apocalypse will ride.
The best thing we can do is to prepare for the coming storm, to become more aware and to help others also become more aware.