> If each of us individually or as corporations should not be in the business of deciding what it "evil", who should be in that business?

This is easy imo. Two methods:

1. The law. It should not be legal for the US Govt to murder people at will. If it is legal, then of course they'll use tools to make it easier. Maybe AI, maybe Clippy. If they can't use AI then they'll fall back to using some other way of doing it like they've already been doing for several years.

2. Voting. For representatives that actually represent us and have our interest in mind rather than their own corrupt interests. And voting with our wallet against companies that do legal but morally bankrupt things.

Of course we're failing both of these hard right now. But imo the answer is not to give up and let corporations make the rules.

In other words, if it were legal for a normal citizen to murder anyone they wanted, of course they'll use Google Maps to help them do that. We don't put restrictions on how people can use Google Maps. Instead we've made murder illegal. We should be doing the same thing here.