On the environmental question, AI tools are energy agnostic. If humans using electricity can be environmentally sustainable at all, so can AI. I suspect the energy requirements are going to drop drastically as more specialized hardware is developed.

There are already a lot of great things they can do in the category of generating content for enjoyment. Both art and text based. One of the most popular twitch streamers uses a language model. Games and interactive experiences can be much more realistic and responsive now. As far as I can tell, a lot of people are benefiting from the ability to ask a question and get an expert level answer on most topics that is correct at least half the time. And this is just the infancy of the technology.

As far as well meaning people, a lot of people working on the technology are researchers and computer scientists who legitimately believe in the potential for good of the technology. Of course, there are people who don’t care and only want profit also, but that’s true of basically every company. So you could probably accurately say it’s being worked on by any type of person in that spectrum, but you can’t say the opposite and deny that well meaning people are creating it.