Weakness is a danger more dramatic in its effect than most.
We speak of will, ability to act and determination, not the weight we can lift or the distance we can run.
It does take strength to do what is right when everyone else is making doing the wrong thing popular.
In the end this is something only possible when one learns to give oneself awards and the rich reward of knowing you have contributed to the good.
Relying on external adulation, award or reward is itself a brutal weakness.