Makes sense. I have met some top level racers who were nice, and others that weren't. Some were capable of being nice to fans, but at the same time were also not nice when just being themselves. Whenever approached by fans my race team and I always tried to go out of our way to be nice and approachable. Even though we were not a factory team or anything, we still understood that racing is an entertainment sport, and as such we wanted to do our best to make the experience of going to see a race a fun experience. Our team was run by a man who really understood that.
I have not met many musicians, but my sister and her husband have. Based on talking to them I suspect another factor in the equation is how long they have been doing it. Musicians that have been around a longer time seem to be better at dealing with their fans. And I suspect some are genuinely nice people to begin with.