Commenting strictly on the metaphor in the title: Did you mean to say ladder? Bridges don't get pulled up.

Edit to say: Yes I did think of drawbridges. And Batman is a scientist. But drawbridges are simply "opened" or "raised," and the implication always is that it's temporary and they will soon be "closed" or "lowered." Though they can be sabotaged in the open position.

All right fine, OP please change your title to "The drawbridge to wealth is being raised and then permanently damaged so it can't be lowered, by AI."

Maybe the author os thinking of a drawbridge (moveable bridge)?

https://en.wikipedia.org/wiki/Drawbridge

Finally a useful comment. Thank you :D

Drawbridges do