[BLKNSLVR]

Differing opinions are seen as an annoying impediment to decision making: yet another variable that needs to be weighed up eye-roll.

Management is easier when everyone just agrees and when Management is easy then Managers are happy, which generally means employees feel less "under the microscope".

Therefore alternative opinions have the appearance of working against both (lazy) Managers and (paranoid) employees. There's only a small percentage of humanity that are either willing, or unaware, enough to potentially get off-side with their boss and peers to provide dissenting opinion. Despite the great long-term value there is in attacking problems with the knowledge of the various angles of entry and exit.

It's sad, but human nature. And here we find ourselves in a world of our own making.

[chrisco255]

It's purely a cultural construct. Companies, societies, families, organizations, universities, etc. all have different internal cultures that dictate the social behavior of those in the group. When a culture of diverse opinion is encouraged and supported by official and implicit policy, it tends to thrive.