Christopher Titmus, a respected meditation teacher is quoted as saying: "I believe that ... defining mindfulness as being in the present moment in a non-judgmental way, inhibits any deep questioning by the staff of companies whose policies exploit people and the environment. This popular definition of mindfulness would make the Buddha turn over in his grave." Titmus goes on to say that "Mindfulness includes our capacity to make judgements in the present and act wisely and directly on those judgments." He points to the conflict that arises in individuals who are caught in organizations that teach mindfulness meditation and violate ethical boundaries. 
I can't imagine the Buddha turning over in his grave over anything, but that aside, let's look at the relationship among mindfulness, wisdom and ethical behavior.