I Couldn't Do the Job

Last week's riddle:

Those who head for the moon find me,
But are always quick to leave.
I am stinky, dirty, holey
Yet once vital for reprieve.

The answer:  Outhouse.  Again, Leslie. 

Honorable mention to Julie, who guess on Facebook with "blue cheese-penicillin" -- loved that guess!



And now for this week's:


I couldn't do the job
All others of my like have done
Victory over me meant
Eternal victory won.


What am I?