You know you've become a cultural icon when...

People sell clothes in a collection to look just like you : www.stevesoutfit.com

People are so fascinated with your clothes that you can dress up your own doll (virtual or otherwise) : Joy of Tech (cf. Similar web pages for pop idols which won't be linked here)

Cartoons deride you and your products, while still enhancing your enigma : VG Cats (cf. Genuinely derogotary Newton reference in The Simpsons episode "Lisa on ice")

People talk about people talking about you : Valleywag