Absolutely it is about trade offs, sometimes bugs are just an inconvenience and time-to-market is more important. But bugs can result in lost business and even

Absolutely it is about trade offs, sometimes bugs are just an inconvenience and time-to-market is more important. But bugs can result in lost business and even lost lives, for example UK Post Office Horizon. Horizon was built (bungled) on the cheap, but the overall cost of that saving must be dwarfed by the financial cost of the resultant scandal.