In my experience, companies that fight to boost their stock prices in the short term end up making them plummet further in the long run. It's the companies that have the restraint to accept a loss in order to build toward a bigger reward that end up changing the world.
Look at Apple. They used to spend so much money on R and D that their stock prices were miserable. But shit, they got the iPod out of it, and look where it took them. If they had instead tried for short term profit, they probably would have ended up putting out another garbage iMac. Or a Zune.
And finally, you can't be so shortsighted as to overlook the impact of encouraging creativity an freedom. If you force beaurocracy on your employees you might end up getting more done at first, but as they start to lose the excitement that comes with being enabled and excited by a company that believes in their ability to be autonomous, the quality of their work will start to decline.
Short point: don't play devils advocate just because all your peers are stoked to work for Facebook. And especially don't do it to get hits on your blog.