Electricity is not 100% of the cost of "everything else". Nor are those part of my electricity bill.
If you want to make a point about where 1% efficiency matters, go ahead and make it! I might even agree! But it still won't have anything to do with systems programming languages.
whether you agree or not, whether you understand or not, whether i'm able to convey the point in proper english or not, it doesn't change the facts
your system being 1% faster mean everyone who depend on your system will be 1% faster, and if you yourself apply that logic to your system, it's commutative, and the results ends up being impressive
if you don't understand that, then there is no point arguing further
If you want to make a point about where 1% efficiency matters, go ahead and make it! I might even agree! But it still won't have anything to do with systems programming languages.