It means that man is doing all in best interests. Thus he is always right. Thus, everyone is right. Man IS basically good. In fact, I would tend to say that in most cases, examining our track record, we've all been fairly knuckle-headed in our decisions from time to time.
Man is a noble, well-meaning entity.
There are several things that cause problems for Man. One of these is an inability to balance the various dynamics in his life. The conflicts cause guilt and turnoil that confuses and degrades Man. This causes, in the long run, more pain, more unwise decisions, more hurt. They make poor decisions, they ocassionally cause pain.