To my mind, advising people to "turn them completely off" is only part of the story. The other part is questioning why they are that wasteful in the first place

To my mind, advising people to "turn them completely off" is only part of the story. The other part is questioning why they are that wasteful in the first place. One explanation might be that it's a side effect of designing them to make their development and production cost effective. In that regard, I wonder to what extent consumer protection regulations would be helpful e.g. clamping down on the production of consumer electronics that consume certain wattage per hour without any proper justification.