Ergo "groups of people". It's easy to dismiss the responsibility that lies on people by saying "this or that organisation failed/was malevolent/whatever". Sometimes results are emergent and unexpected, but it seems starkly - from my observations - that individuals usually do realise, and often are consciously in control of their directing influence.

Group effects are known, cf bystander effect. Actually companies show a bystander-like effect, "what we're doing here is evil, someone [else] should change that".

Just because such behaviours are common in groups doesn't mean individuals aren't responsible. It's easier to ignore your moral responsibilities by invoking the company as the responsible party.