Sometimes you just write inefficient code because you don't know better, or because to improve efficiency you need to use a new workflow or framework which won'

Sometimes you just write inefficient code because you don't know better, or because to improve efficiency you need to use a new workflow or framework which won't exactly pull or revolutionize what you're fixing/doing. If it works, and everyone likes it, it isn't inefficient code. You just applied the best of time, resources and delivered what the end customer wanted. -- What about something more dicey, like the incarceration of humans, or even eventually deciding which ones deserve more treatment, or not? Or regarding insurance policies that are dependent on legal geographic location of the customer and risk mitigation policy of the ORG that hired you to conserve overall lifetime cost per customer?