Gaining access to safety critical hardware is a questionable right. What if you are the owner of a building and you decide you want to "optimize" the fire dete

Gaining access to safety critical hardware is a questionable right. What if you are the owner of a building and you decide you want to "optimize" the fire detection/fighting system because you have some ideas in this area, or maybe you want to run an "open" software on it, with better reporting, and as a result some people die in a fire. Yes, is totally hypothetical, but you seem to be saying that one is not responsible if he does that, because he was just "hacking", with no mens rea.