Many times throughout the Entrepreneurial Thought Leaders podcast[1], a founder expresses the sentiment, "If I had known how hard it was going to be, I might not have started the company." The difficulty discounting has also been cited as the reason why many successful founders are young and inexperienced. So while hubris can lead to disastrous consequences for engineers, it could be viewed as an asset for inciting action.

[1] http://ecorner.stanford.edu/podcasts.html