Roshani is no longer marketable and thus a liability for DC. And, no one is indispensable in the world of showbiz, and DC knows it while Roshani wants to live in her past glory. The dream merchant DC gave her the platform and may have written her dazzling success story, but like the Butterfly, the fame also doesn't have a long life. He has to create a new Dazzling Star to get his show going.
The fading Butterfly craves for the same attention and love, but for the Dream Merchant, she is the product who is well-past her expiry day.
Roshani's fault: she no longer looks in the mirror to see herself but she looks into the eyes of DC to know "who she is."
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