No, it's not the same principle. I may root for an opponent to lose a particular game, but I'm not rooting for their franchise to fold. Big difference. Just as I may hope that the iPhone, EVO, etc. does better than the Pre, but I wouldn't wish for Palm to get to the point of needing to be sold. People's livelihoods are greatly affected whenever something like this happens. It's about more than just the gadgets.
While I share opinion that there is room for multiple companies to do well, I think it is a little naive to think the brand of capitalism we have in the US is all about solidarity and fair play. There are big time investors and people on the floor of the stock market buying stocks of one company, knowing another is failing and hoping they got it right as one companies failure helps the other.
On a more personal level, the average citizen is willing to live on an un-level playing field to their own benefit everyday. People say all sorts of things without really having thought about what they are saying. I hear all the time complaints about illegal aliens and foreign labor taking jobs away. Yet we live in a consumer economy. We don't produce anything in this nation really (except for weapons). How many people are willing to honestly say they are so concerned about their fellow citizens that they would prefer to pay higher prices for electronics and their newly constructed houses in order to employ skilled American labor? Not many sadly. Our consumer economy is all about finding sources of money for consumers to borrow and give it to underpaid labor abroad or here illegally. The inequality drives the economy with the profit going to a few at the top as the money changes hands. And the complaints are few because its been so long since most people here had manufacturing jobs to be concerned about. And most people would prefer to keep prices low on everything for cheap consumption than get a job in manufacturing instead of the service/consumer industry.
Our society is not truly capitalistic. It is a leverage of inequality about the globe creating cheap labor on one side and consumers on the other. The only problem is when the credit runs dry. Then the "fix" is to find new sources of credit. For those who are making money as CEO's and big time stock investors, it is in fact a sporting event and the stakes are high. While you and I may not intentionally desire the demise of a company for enormous profit, we are part of the economic system that drives the world. There are many who are ignorant of the problems the service/consumer driven economy of ours is causing here in the US and around the world, but we are all part of the problem until our economy is based on people making money by producing things and then purchasing goods with earned money instead of credit (primarily).
As for people without big financial stakes rooting for a company to fail, well its not surprising. We are in an economic system that serves personal gratification by purchasing goods made by cheap labor with credit. Everything is about self gratification. There are many people who want their favorite company (APPLE, MS, GOOGLE, PALM, etc.) to dominate so that their personal experience is safe. Why would someone wish facebook's demise for example? Most likely because they have a preferred way of social networking and if other people are using facebook then they have to change. If someone is using microsoft windows, they probably don't like apple because it makes life difficult for them to have a different system out there to deal with. Life is easier if everyone does things the same way and preferably THEIR way. It's a self centered economy and it breeds selfishness in our society.
In case someone wants to comment that one political party or another is to blame for our current economic system that promotes purchasing on credit, I will remind you that BOTH political parties see the solution as keeping credit available. The Bush administration pushed for Bank bailouts and the Obama administration continued this policy. The paradigm in this nation is that the money should flow from our credit accounts to the cheap labor making the products with a lot of it skimmed off the top for the major players. No one is suggesting that the system needs to be changed.