[PeterisP]

One man's "pour your limited resource on the ground" is another man's "valuable use of that resource" - if they're choosing to do something with the energy they purchase, apparently they consider that this is a worthwhile use of that resource. If I'm in the desert and want to pour some water on the ground for growing orchids, that's my choice on how to use it - if it's really important to conserve water, then it will be costly enough so that I won't waste much of it on luxuries, but if it's cheap enough to do so, then people are voting with their wallets that it's NOT really (yet?) so important to conserve it so much as to refuse spending that on luxuries.