Nassim has it right. To paraphrase Max Weber (politics as a vocation):
...Porn is a strong and slow boring of hard boards. It takes both passion and perspective... even those who are neither leaders nor heroes must arm themselves with that steadfastness of heart which can brave even the crumbling of all hopes. Only she has the calling for porn who is sure that she shall not crumble when the world, from her point of view, is too stupid or too base for what she wants to offer. Only she, who in the face of all this can say, "In spite of all!," has the calling for porn.

SashaG had a Will to Porn.