You get that power, you use it on people who are making the world a shittier place first.
Now, that's not precisely moral, but let's be honest, beyond a bit of minor larceny there's not a whole lot of personal gain you can realistically achieve.
Steal a truckload of cash? Sure, but then you've got to launder the heck out of it, and I've seen Ozark, that's more drama than I want in my life even if I had the skills, which I don't. And nobody pays cash even for groceries any more, have to wait for one of the non-card registers to open up and it's a pain in the ass. Maybe you could rig a horse race or something, but the people involved in serious gambling are very good at spotting anomalous wins, and your life wouldn't be worth dick the second time you tried it.
That pretty much leaves pranks and murder, and you're a damn fool if you bring that within a dozen miles of any kind of personal connection.
Which pretty much only leaves assassination of high-level assholes as something that would a:) make a noticeable difference, b:) keep you under the radar and c:) be immensely satisfying.