It's quite painful to resolve cognitive dissonance, so I understand the downvotes for your comment.

People are clever enough to reach high level corporate roles, but at the same time they're are too weak to emotionally process the consequences of their "work" on their human cash cows of below-average intelligence.

However with these kind of moral/ethical questions, it's really hard to draw the line.

Is working at Google and thereby facilitating the scamming of my grandmother worse than being an ordinary pickpocket or an lobbyist for big oil?

Well, sounds like you have a rather weird definition of accountability. You do you.