Comment by DrScientist

It really isn't complicated. For the first example the principal of least harm applies - the only hard part about that is the practical calculation of that - which can obviously be a matter of judgement - but the principal is clear.

And you are also missing the point of the comment - the key thing is the principal of least harm only applies if the things are directly linked.

I suspect you'd find it hard to find a philosopher over the last few thousands of years who thought that the concept of saving up societal credit so you can kill you spouse is somehow a valid one.