There was a lady in one of my previous projects whose job was to maintain the integrity of sensitive financial data (she was doing a lot by hand, as they wanted a human to check every number). In the 2 years or so I worked there, there was not a single mistake from her. I didn't hear much appreciation for her from others, but my CTO used to call her the most important person in the company.

Some tools, some people just work, just do their job quietly and efficiently. They do not get any appreciation, precisely because they are too efficient and go unnoticed. JS is not one of them for sure.