Worthiness begs the question of a judge of worthiness. The Agents may not have liked us as part of a balanced ecology, but they found us worthy batteries, for example. But they’re made up, as I’d argue most other external judges or values are. Even if a human is making that judgement, worthy of what and why? More worth than X? To who? Why is their judgement worthy?
It’s a big can of worms and the deeper you go, the less clear it’s going to be. Maybe focus on a smaller bite for now.