So it's a vicious circle, and a sinister one at that.
Honestly, even if you understand these issues, it's hard to judge whether producing such weapons is right or wrong. After all, they do need stronger weapons for self-preservation.
But then again, self-preservation is, to a large extent, an important part of this vicious circle...
People fear failure, internally fearing the threats from their superiors, superiors fear threats from society, society fears external threats...
It's hard to trace how this logic was established.
Now the people in the command room are the same, unable to resist Lille's will, they can't do it from their ability, and they admit they need such weapons for self-preservation from their mindset.
On one hand, it's because they can't defeat Lille; on the other hand, they are like those who destroy the opponent first for fear of being destroyed—
For self-preservation, they must obtain a weapon of mass destruction.