It's a tool just like any toolset. You don't need an undying passion for mechanics fueled by a thousand suns to use and understand a torque wrench. The allure around this job is invented and idealized in too many cases for it to be genuine to me. It has too many ordinary and mundane problems shared with other industries (i.e. social) to be a special industry. If it were really special, people would be tripping over themselves to get out of your way and see what you build or do next. Some people get to this level but the vast majority don't. Compare to being an astronaut.

There's also no tragedy in being a doctor that just wants to do a good job. Not every case is going to be an interesting medical mystery. In fact, it's probably gotten more frustrating as people suddenly start trusting internet articles and you have to endlessly urge caution and explain anything they've got wrong.