> Wasn't there an experiment with mice where they kept pushing the button attached to a wire that made them release dopamine, and they kept pushing it until their dopamine production broke down, they lost interest in doing anything, and died?

Yes, but morphine, and people later realised that the mice were essentially living in a murine version of hell; when they made the environment a "mouse hotel", they didn't get addicted.

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