There's a big difference between a tool only sold to people in a specific industry, and not generally available, and a tool available at retail outlets which is

There's a big difference between a tool only sold to people in a specific industry, and not generally available, and a tool available at retail outlets which is meant to be used by the general public. (And with one thing you mentioned, C compilers, the tool itself isn't dangerous, but the artifacts you can create using the tool can be dangerous. This is why aerospace software, for example, has a lot of procedure around it.)