I've been thinking a bit about high level goals to push for. Here are a couple ideas that come to mind:

• microtransactions — I think this would allow people to make money on the internet without ads, which would be good in itself, reducing mental pollution, but would also allow services that don't lend themselves to ads, like stuff where people need to concentrate, since those aren't good times to show people ads.
• online automated medical diagnosis — I think we could build AI systems for diagnosing people that would work really well, probably better than doctors (though the near-term would be limited by cases that require looking at stuff, but even that seems doable now given the success of the NYU image classifier thing where people could upload a picture of their rash or whatnot). I feel like this is mainly hampered by legal issues, not by technology.