You can frame anything being "a tool". But if you want to stay within your logic, then this is a very specific "tool", it is supposed to directly interact with people, not machine to machine, and as such it can have consequences which are unpredictable. And no, human to human interaction is mostly NOT unpredictable, we act according to social norms and have common sense, otherwise you're not a proper human.

This is not a new issue but is heavily researched in the certifiable AI area. If you just turning million knobs randomly based on an architecture and the biased data you have, of course you don't really known what you are doing.