Everyone with your exact job title in your industry vanishes, how long until awful things happen?
I'm a support engineer for dental software. So difficult issues won't get immediate resolutions, and instead development will actually have to fix things because offices will be crying at them for a fix instead of at me.
I could best be described as an "emergency draftsman". And potential damage could be far reaching in scale.
I work for a company that, among other things, makes replacement parts for things like power plants, chemical plants, any large industrial installation. In many cases, the thing that breaks is a one of a kind part, or something last manufactured in the 1960's, or some other thing that you aren't going to be able to just go buy a replacement. So what happens is someone will occasionally drop a broken something or other on my desk, and I have to figure out what it used to look like, then make a 3d model and a drawing of the part so it can be reproduced.