in my opinion this is very straightforward. the people working directly on power, water and materials don’t have any control over how those things are used and often don’t/can’t know what they’re being used for. however, at some point, a decision is made - for example, someone at the company that makes the steel alloy decides to sell it to raytheon - and so whoever made that decision is responsible.
and yes, if you work on a weapon safety system, you are working on an essential part of that weapon and so are responsible for its use
How far down the rabbit hole do you want to go for collateral ethical responsibility?
If you work on the power grid that has a weapons manufacturer are you responsible for every use of that weapon?
If you provide clean water, and workers of a weapons factory drink that water, are you now responsible for the weapons?
If you design a weapon safety system, to prevent misfires, are you not responsible for the other uses of the weapon?
If you make a composite steel alloy, and some of the purchasers of that alloy are weapons manufacturers etc etc etc
in my opinion this is very straightforward. the people working directly on power, water and materials don’t have any control over how those things are used and often don’t/can’t know what they’re being used for. however, at some point, a decision is made - for example, someone at the company that makes the steel alloy decides to sell it to raytheon - and so whoever made that decision is responsible.
and yes, if you work on a weapon safety system, you are working on an essential part of that weapon and so are responsible for its use
What if you work in HR at a major weapons manufacturer?
Unethical².