Positive or Negative Attitude - Your Interpretation

If you don't agree with your boss's opinion, you are negative.
If you don't support your peer's opinion, you are uncooperative.
If you don't support your staff's opinion, you are difficult to work with.
Conversely,
if you agree with your boss's opinion, you are but a Yes man.
if you agree with your peer's opinion, you are very accommodating.
if you agree with your staff's opinion, you are lacking in leadership.