Just try to skid a bit on a board with no base bevel then put a 1 degree bevel on it an you'll see a huge difference. Yeah, 1 degree, not that much, only on the edge, a few mm wide, can't matter, right? Well...it does when you pivot the board. Makes no difference in a carved turn, can't tell'em apart. Kinda funny that way.
And for sharpness, well, that's important too.