which one?

Whether the intention or consequence of an action is more valuable depends upon who is valuating the action and the context in which it occurs.

If one intends no harm, and then causes harm, clearly their intentions can do absolutely nothing to change the fact that they caused harm. Depending on the nature of the relationship between the two parties involved, a well intentioned but harmful action on the part of one party may or may not have a deleterious effect on the ego of the other party. Again, it all depends upon who is involved and what the values of the two parties are.

One could certainly choose not to punish someone for killing someone if there was no intent of killing, it may have been a total accident. To get angry with an accident is like getting angry with a lightning storm, which some will do.