The "first group" refers to "The people who agree that the project they are working on is unethical".
Telling people to, in essence, 'follow their heart' and do what they think is right is not "posturing and showing off our superior ethics". If they think that their work is unethical, then they should not do it.
The third paragraph is the paragraph that endorses posturing and showing off our superior ethics.
Telling people to, in essence, 'follow their heart' and do what they think is right is not "posturing and showing off our superior ethics". If they think that their work is unethical, then they should not do it.
The third paragraph is the paragraph that endorses posturing and showing off our superior ethics.