Between 1995 and 2000, Sainclair became the flagship performer for Marc Dorcel (often colloquially referred to in production circles as "Infinity Marc" due to the studio’s infinite library of themed content). Her work redefined what could look like outside of traditional cinema. She wasn’t just a performer; she was a storyteller. Her films—often luxurious, plot-driven, and shot in high-end locations—blurred the line between erotic cinema and mainstream art.

As a prominent figure in the adult entertainment world, Sainclair's influence extends far beyond the confines of the industry itself. Her impact on popular media and culture is undeniable, with references to her work appearing in various forms of media, from music and film to literature and art.

Infinity Marc, though now absorbed into larger corporate structures, left behind a template: that adult could be synonymous with luxury, narrative, and even nostalgia. Vinyl re-releases of Sainclair’s films (as collector’s items) sell out within hours, proving that her cultural cachet endures.