If it weren't for being unable to defeat the enemy, who would want to abandon their accumulated wealth and flee? It's not difficult for a world with lower strength to reach the upper limit of combat power, but the higher the level of strength a world demonstrates, the harder it is to reach that limit.
It's not to say that a world with high strength will definitely have peak combat power.
The limit is higher, but the threshold to reach that limit is not necessarily low.
Among the Proxy Agents that appeared first, those obviously belonged to the ones who had reached the upper limits of this world's tolerance.
This isn't surprising; Proxy Agents preserved by Dusk all possess such talent; otherwise, they wouldn't be kept but rather annihilated by Dusk directly.