If I were to be strictly measured by my intentions, I will be the best _______ (husband, father, son, friend, manager etc). In as much as I do believe that most people have the best of intentions, it is the impact of your action that counts.
Often, regardless of our best intention, our action has a negative impact. My sense is, this is because we are allowing our intent drive the action. "I mean well, so I am just going to say/do it..... ". Next time, simply align your intent with your action and desired impact.