I donated $100 to my state's gubernatorial campaign as a part of my annual "make the world a better place" campaign, and was surprised to receive a call from an unknown number the following day. It was the Governor, thanking me for my donation personally, and wondering if there were any issues close to my heart that she could keep in mind. Note that this was from her personal cell phone (for whatever value of personal an executive politician actually has, but still), and she invited me to phone her if I had any issues that the state government could resolve.

That's a wildly low sum of money for a 5 minute personal call, let alone even a modest intervention.