> Which, unfortunately, cannot be measured
This is such a subtle but important thing that so many people do not understand about data analysis. It's even at the heart of things like survivor bias[0]. Your measure is always a proxy and this proxy has varying degrees of alignment with what you want to measure.
I know everyone knows the cliche "The devil is in the details" but everyone seems to continually make these mistakes because nuance is hard. But then again what is a cliche if not words of wisdom that everyone can recite but fail to follow?
> Its all fun and games until you cut quality over and over so much your customers just leave.
The alternative is you develop a Lemon Market. Which is a terrible situation for all parties involved. Short term profits might be up but these are at the loss of much higher long term rewards.
[0] You infer where the downed planes were shot through the measures you can make on recovered planes. But that is very different than measuring where downed planes were shot. You can't just take the inverse of the returned planes and know where to add plating from there.