The work we do is a reflection of who we are as the Image of God the Creator. In being careful and thoughtful in whatever you make or whatever service you perform, you are demonstrating the good character traits of a Divine Image. Angels will watch what you do in order to understand God; even though they have known Him for thousands of years, they will learn more about Him by watching humans perform tasks with excellence. Even when we are not careful, animals see our craft and know that we do things they never could. When we do whatever we do with excellence and care, we bring justice to the world around us.
No one died because bridges were made too well or because paper held it’s form. While wicked men exploit tools for wickedness, their wickedness would continue without quality work. But, if the bridge holds, then people can cross in safety and we can come to the rescue of people who have no hope. If paper holds its form, messages and ideas can make their ways through the world, helping humanity to understand each other and progress.
When you don’t do a good job, you create cleanup work for others, thus taxing their time when they have done nothing wrong. Such is not the justice of God. Having your work finished properly, well-assembled, robust, and suited for its purpose, other people can focus on their own tasks and needs, having their work been helped by whatever part you finished well.
No matter how insignificant or boring, your work explains God and dispenses justice to everything around you. Work and effort are like a shining light, but traveling through the presence of tools and pathways rather than through photons.
Rightly so, God will judge every one of us for how we perform our work much more than whatever work it is that we do. If you drive a car, drive it with skill, speed, safety, and respect for other drivers on the road. If you clean toilets, minister to every visitor of the lavatory by granting them the cleanliness of Heaven. If you govern, help the efforts of the skilled people you serve.