I guess the value of your time is determined by the authority of the person requesting it's use, within reason, of course.
This reminds me of a story related by my wife about an early experience right out of high school when she worked as secretary for an executive of a local broadcast company. Her boss was in charge of construction of a new communications tower. After a visit to the construction site, he instructed her to clean his muddy boots.
She promptly and politely explained to him how he could clean his boots.
For the record, she also explains lots of things to me...
I may not be good, but I'm slow.
The only thing worse than being an influencer
is believing one.