This has a lot of explanatory power. Weakness, or more accurately one's perceived vulnerability (inability to weather momentary losses), leads to pre-emption and escalation.
To use vitality as an example, a healthy person can handle the odd cold or cut that could be fatal to someone with compromised immune system. Rightly then the vulnerable person will react quickly and intensely to perceived threats that the healthy person may shrug off (or even engage with, like volunteering in a hospital.
And that's a feedback loop. People feel vulnerable because they're under attack, so they attack others, who then feel vulnerable because they're under attack. Somebody -- better yet, everybody -- has to be a grown up and stop the cycle.
To use vitality as an example, a healthy person can handle the odd cold or cut that could be fatal to someone with compromised immune system. Rightly then the vulnerable person will react quickly and intensely to perceived threats that the healthy person may shrug off (or even engage with, like volunteering in a hospital.