Speaking only for myself...not the forum...it is not about quality, it is about profit.
These things can be extremely closely related, but they are not the same thing.
Having the best quality in the world may end up losing business for you, since the cost of the best quality in the world may increase your price beyond your competitors who simply have "good enough" quality.
Most times, "good enough" is good enough. "Better" may or may not be better.
Quality is one of the foundational elements to surviving in business...but treating it as the goal instead of as a tool to reach the goal is damaging to business.
{Ignoring the tool of quality and not caring about quality is even more damaging}
Paying attention to the ROI of quality improvements requires attention to be paid to the cost of quality...if it costs too much, it may not be the best choice.
Thus many folks pay a lot of attention to the cost of quality.
Being hard to measure accurately and/or precisely, and having to show numbers to those responsible for deciding how money is spent, leads to much discussion on "How do I calculate this?"