I don't really have a well-written reply for this, but I can see your firearms angle. I invite you to read this: https://www.arc.unsw.edu.au/blitz/read/under-their-influence-should-celebrities-stay-out-of-politicsquestion

The democratic process is designed for participation. So, if celebrities can get more people involved, this means that ordinary people will have more control over how their country is run.