It is pretty easy to avoid making that confronting customer call, stand up and articulate an idea at odds with the boss, conduct an experiment conventional wisdom says will fail. The price for not doing this stuff is pretty low, few will critisise, but there will be little pay-off as well.
It takes intellectual bravery to confront the natural reluctance to stand out from the herd, make yourself vulnerable, be different, but without that bravery, nothing changes, and little new value creation will happen. As George Bernard Shaw said, “all great things start as blasphemies”