Once I have enough political capital within a company I'll just stop showing up to the ones that are a waste of time for me. If someone asks I'll let them know that it's not useful for me.
True. This lack of fear comes from (1) being competent and productive, (2) being the expert in critical systems; the company would have a bad time if I was gone, (3) being hard to replace (it recently took us 6 months to find a second member of my team), (4) having good options available in the job market if I were to be fired.