I found that the people with the strongest moral posturing are often also the most ruthless bullies. Is that because violence is seen as morally permissible against the political outgroup, or are sociopaths just more prone to use ideological powerplay for personal advancement?
If a group is founded on a shared agreement over a purpose, you can logically derive and rationally negotiate to which degree an individual, behavior, motive or action serves that purpose. It is true that emotions might obfuscate that, which can be employed for moral subversion.