Exactly. In every science department I have been in, being chair is not seen as a privilege, but as a burden. Attitudes mostly range from "hell no, I'll quit if you try to make me chair" to "okay, I'll do it, but only if you can't find anyone else, and for a single 3-year term, and you better not ask me again for the next 12 years".

In my current department, we were lucky to have someone who liked doing it, so they were given the job repeatedly. When they went on leave and it was time to find a replacement, we had to beg someone to step up to the job.

Faculty who want to be chair eventually shift to administration. The remaining faculty want to do research and/or teach, not be chair.