Are monks, philosophers, and soldiers not self-aware?

A society composed entirely of selfless monks?

(Philosophers are definitely not self-abnegating. They are on a career track. Soldier do exhibit self-sacrifice, but quite a lot are conscripted against their will, and require a bit of re-education in boot-camp.)

What are your thoughts on kamikaze pilots in this regard?

Humans are capable of self sacrifice for a cause. Duty, honor, love of one's homeland, spiritual convictions, etc.

These are psychological motives and forces and their factual impact on the subject person is observable.

I just recently saw Eien no Zero (aka The Eternal Zero). If that movie reflects the actual events, then the pilots were subject to serious psychological stress coming to terms with their duty to Japan.

If we can ever measure 'psychological stress' in ants, then we can observe if they experience a shift from a normal psychological state to a stressful one before "deciding" to sacrifice themselves on whatever heroic ant task awaits them.