It's something I hear talked about every now and then in geek and fan circles: the person who made it who looks down on their past. They deny they wrote fanfic, try to forget their earlier artistic efforts, don't acknowledge their roots. The complains usually involve the person in question looking down on people who do the very things they did to launch their careers; writing fanfic or for free, the oddball cosplay outfits, the years of grinding out boring web code.
My guess is you're nodding as you hear this.
I'd like to note not only are people who act like this arrogant, I think they're missing the point of doing what you love: it's not climbing up the mountain of success, it's about descending into what you truly love and embracing it.