I'd imagine it's because anyone who's paid a gas or electric bill in both summer and winter for the same dwelling knows how much heating and A/C cost. Thus, individual expenditure of comfort-related energy depends not on awareness but on willingness; and a TV news item certainly isn't going to make me turn off the A/C at night and wake up every morning with sweat-soaked sheets and a parched throat.

Devices that drain power while doing nothing useful, on the other hand, are an awareness problem. If a news platform can inform people of small power drains that are avoidable at nearly nil personal cost, the aggregate effect could easily be greater than a moral harangue about the social inequity of refrigerated food.