I've been a Nicki Minaj fan since her mixtape days. She has really established herself as not only an artist, but a businesswoman. The reason everything is "pink" with her is because she sees it as her brand. And others may not agree, but I want the Nicki Minaj swim trunks.
Her American Idol judging job wasn't really a method of abusing the spotlight for fame. It was more her way of showing that despite the struggles she has gone through (and believe me, she has gone through a lot) and the mass amount of criticism she receives, she can persevere. Maybe I am biased, but she is one of the best judges on the show in recent years. She actually gives a lot of insight into vocals, etc. She also tells the contestants not only how to sing properly, but how to succeed into today's music industry.