For example when watching 1080p youtube video in Safari the power consumption is only 0.1watt because it’s using hardware decoders. (not including display backlight, I can’t measure it). But when I play the same video in firefox which is using software decoding the consumption is around 0.7w which is not as good as hw decoders, but still less than a watt
This is a very dangerous way of thinking. You cannot tell at the time of discovery if specific research will be useful or not down the line. You need to advance the research in all directions, even if some of them seem silly or useless, or else you will handicap your progress in other fields which you didn’t see the connection with at first.