It seems you have accidentally found some meaning in your work, something your old self apparently couldn't imagine. Meaning is incredibly important - life is too short to sit around doing as little as possible in order to make money. Humans need meaning, and you're still human even while at work.

So you're not being stupid at all.

Where it becomes tricky is if you are offered positions with less meaning but more money/career opportunities. It's important not to be run over; meaning and wages needs to be balanced. But it seems the wages are the same here, and neither option is a health risk, so I would pick what's meaningful for you.