What an odd concept.
Makes me think of Monty Python's "not dead yet!"
As (sometimes) obsessive audiophiles we are often accused of overkill but I prefer a different description.
It might be overkill to check for the hundredth time how level your turntable is, but after spending an hour carefully setting the VTA it is to me more like the final check before liftoff.
Knowing everything is right has a wonderful calming effect: a measure of confidence that lets down my defenses and encourages the music to flow as it should.
Overkill might just be the last tweak we need.