That is true, until it isnt anymore. At one point Google will become so shitty and other search engines much better, that everyone will start to switch over, but at that point its too late for Google to do anything about it.
But thats somehow beyond the grasp of every shareholder ever (or they plan on selling the stock in a few years anyway).
I would say risk taking isnt always bad and not always illogical. But yeah, as a man I know what you mean when you talk about testosterone and risk taking.
I imagine it used to have quite a lot of benefits back when we were still sleeping in caves, shure you might die when facing a mammoth, but you could also feed the whole tribe for weeks when you succeed.