I mean it depends on how you look at it, and what you consider is an L.
Somethings don't affect your career but are, as i see it L's
- Jay stabbing Un/Or taking the blame - Didn't hurt his career but stabbing a man in anything but self defense is an L.
- Eminem saying ''nikka'' even though he's white - Didn't hurt his career and sales but is an L.