Some people just don't fit into the 'boxes' that society would like us to, we don't follow the crowd, we don't 'conform'.
We have a different perspective on things we see, hear and read, and how we react to those things. We're often not 'team players' and definitely don't belong in the 'yes men' category, we are who we are. If asked our opinion we freely give it, but it's quite likely not the answer people wanted . . . or needed.
Psychoanalysts would probably have a fancy word for us, some mental aberration or other, not that we'd be bothered anyway