In just a moment, someone will give it "a button to press" and hopefully it will have mostly positive effects. But it will certainly be interesting to follow. Most of what we've seen so far has been one-directional but hopefully these services can interact with the wider world soon.
I think everyone is very wary of abuse. It would be fun in the future if AI-siri can order pizza for you, and maybe there'd be some "fun" failure modes of that.
You'd probably want to keep your credit card or apple pay away from the assistant.