Yeah a single spear could easily kill hundreds at a time while the guy that made the spear plays both sides politically to incite more use of the spear.
Now world leaders can nuke an Arby's an easy as they can order Arby's on Doordash.
That's gotta create an underlying sense of "well, we have it, why not use it?"
The recent Israel-Iran conflict is a perfect example of this. The initial attack accomplished nothing (set their nuclear program back by what, months?) and the response was equally meaningless.