I don't know how to cordially express how much I disagree with this.
The time that a job consumes is a bug, not a feature. The reason a farmer hires a carpenter is to get the barn built, not to feel better about the hours the farmer spent growing the crops that the carpenter eats. If the carpenter could snap their fingers and get the barn built instantaneously, rather than over the course of a few days, they would, and the farmer would still give them food to pay for it.
The time that a job consumes is a bug, not a feature. The reason a farmer hires a carpenter is to get the barn built, not to feel better about the hours the farmer spent growing the crops that the carpenter eats. If the carpenter could snap their fingers and get the barn built instantaneously, rather than over the course of a few days, they would, and the farmer would still give them food to pay for it.