Simple solution to push back against corp. policies.

If/when you encounter a sweatbox, hit record on your cell phone and interview other pax. Shove your cell phone in the FA's face and ask her why the A/C isn't on when it's 85+ inside the cabin. Then upload to YouTube identifying the flight # and airline.

This practice will stop with a swiftness.

Note: don't do this while in uniform or if you can be identified. Better still is to simply suggest to some other pax to do this. The lemmings out there will be more than eager for the fame and attention it gets them.