...if you consider quality a lever, you're not the kind of person anyone should want to work with!
You agree on quality standards before you begin, and you deliver the quality level that you agreed beforehand, not more, not less (you deliver sooner if it goes better than expected giving the product-owner ability to add features or redirect effort actually using your "superpowers" if any to give the business a real advantage), at a profit or at a loss. Otherwise you're not a professional, you're either an amateur or maliciously dishonest/exploitative!
You agree on quality standards before you begin, and you deliver the quality level that you agreed beforehand, not more, not less (you deliver sooner if it goes better than expected giving the product-owner ability to add features or redirect effort actually using your "superpowers" if any to give the business a real advantage), at a profit or at a loss. Otherwise you're not a professional, you're either an amateur or maliciously dishonest/exploitative!