So does demonstrating that your company is interested in making cool products instead of hooking scammers up.
And acquisitions, which are are frequently paid in part (or entirely) with stock.
But acquisitions in the case of FB are used as defensive, kill-our-competition moves. Is that really justifiable?
Same for hiring. FB's money making machine needs very few engineers, but it still needs to keep hiring to deprive potential competitors from competent programmers.