When you waste energy, that is production which was not done. People care about that because they would prefer there to be more production so that their money is more valuable. Wasted money does not necessarily mean less production because you can waste money on inconsequential things. People must care if you waste energy because that means something useful cannot be produced.
When you waste energy, that is production which was not done. People care about that because they would prefer there to be more production so that their money is more valuable. Wasted money does not necessarily mean less production because you can waste money on inconsequential things. People must care if you waste energy because that means something useful cannot be produced.