I agree with your statement primarily because I support SCADA systems that cover a municipal collection system, distribution system, two wastewater treatment plants and a water filtration plant. If the SCADA system goes down at one of them there could be sewer spills (leading to a very sick public), water hammers (blow the top right off your sink), improper chemical levels that could damage the environment or poison unsuspecting people - and the list goes on.

Just because you don't work with it doesn't mean don't pay attention. I am not an Oracle DBA (nor do I want to be), but I still pass information on about patches or bugs I get information on to our Oracle DBA's. Why? Because I believe that we all should help each other and at least be aware of what is going on. The minute you turn a blind eye on something or think it can't affect you - it will.