This is a very interesting topic as we tend to glorify those who are good at something such as sports, music, or science and forget they are also humans and make mistakes. We have a close example in Barcelona with former football team member Dani Alves who ended up arrested under rape accusation.
I don't care at all about all these famous people but I cannot unlink the professional from the human being. True they can have achieved great goals in their professional life, but the moment they act with greed (as most of them do) and treat others with disrespect, they do not deserve any recognition at all.
Today's society tends to forget what the real values are. We tend to glorify people for accomplishing "unimportant" entertainment goals and forget about those spending most of their lives helping those in need, just because they do not appear on TV every weekend or never have their stories told on the news.
Yet, don't we all do this at some point in our lives? Sure, it might not be to the same scale, but it is on the same spectrum. Where is the line where punishment starts or recognition stops? Who decides and on what factors?
I have never been a fan of much, nor have I ever looked up at people who might be considered celebrity, or that others worship for some reason. I just treat people all the same, tease them all the same :)