It helps to distinguish between being responsible for something and achieving a result.
The responsibility limits itself to what someone can do to contribute to achieving an objective.
Achieving a result can only be measured backward. Whatever was achieved will be measured against what was expected. But no one can guarantee that the objective that has been aimed for can also be achieved.
A happy event is when what has been achieved resembles what was aimed for.
Sometimes people have so gotten used to their routine and its output that they assume that they had been in control of achieving the result. That’s why they assume that responsibility means to achieve an expected result. They have lost sight that what they assume is impossible.