Edit: To be clear, I posit that consciousness is the organ that enables us to distinguish between Good and Evil.
That same professor has done a bunch more work on the topic, as have many others.
Evolution is a strange phenomenon. I invite us to marvel at the transformation of terrestrial quadrupeds into majestic aquatic creatures, over eons: https://en.wikipedia.org/wiki/Evolution_of_cetaceans
Evolutionary speaking, cetaceans "share" the front limbs with quadrupeds. And yet there is a qualitatively distinct functional difference. Consider that moral consciousness, as present in humans, is functionally not quite the same as its biological precursor, the moral sense present in dogs or gorillas. And, of course, there are gradual changes along the evolutionary way.
Edit: "Organ", more precise "sensory organ", as in "the visual organ". Perhaps there is a better word here than "organ" here, before we get lost in the medical distinction between eye / retina / optic nerve / cortex / etc.
But I stand by my point. A moral sense is something that provably exists in a lot of social animals. Is it different in each species? Yes. Is it different in each individual? Surely. But unless you're going to claim that all of those animals are conscious, you can't say that consciousness is foundational to a moral sense. Indeed, I think the much easier argument is that a moral sense is foundational to evolving consciousness.
E.g., look at how the technological progress it makes is at risk of destroying human civilization. A series of ecological boom/bust cycles could lead toward negative selection for consciousness. Or we might manage to wipe out ourselves or, say, most mammals, leading life on earth to start over as it did 65m years ago.
But even without that, it's not clear to me that consciousness will really win out. Look at the number of successful people who are not only painfully unreflective, but need to be to keep doing what they're doing. I could name a lot of people, but today's good example is Alex Jones, whose whole (very profitable) schtick is based on refusing to be fully conscious of what he's saying: https://popehat.substack.com/p/alex-jones-at-the-tower-of-ba...
And this is hardly a new idea. Vonnegut wrote a novel where humans end up evolving into something like a sea lion. The point being "all the sorrows of humankind were caused by 'the only true villain in my story: the oversized human brain'", an error evolution ends up remedying.