As any self respecting QA engineer knows, there 2 equal and opposite forces that act on different ends to create torque that keeps the software "cycle" rotating -
1.) the evil force called QA logs high severity bugs forecasting catastrophe as inevitability in the system to get the wheel in motion.
2.) Development aka heroes (why are they always commended for fixing a bug when they coded badly in the first place?) as part of evaluation predict completely opposite rosier picture and soothe nerves saying such things rarely happen in real world and fixes aren't urgent.
Much like Ying and Yang, these opposing forces teach humility, eternal battle between good and evil etc.