Quality is not an optional extra in any part of what you do.
If a customer/client experiences a lack of quality in one area they are likely to jump to the conclusion that issues they are experiencing in another area are due to your lack of quality rather than their own mistakes.
The result of these assumptions is increased calls to technical support, more time spent in technical support investigations and escalations, delays to projects and general loss of confidence in your software.
Far more cost effective to ensure quality is good enough in all areas of what you are delivering.
