Not entirely, I get away with it as the publications ultimately use low quality reproduction and so they don't match anyway. It's certainly better but the main issue for me sending RGB is brightness and I've learnt to adjust for it. The consumer doesn't know what it's supposed to look like colour-wise, they're probably reading in non-optimal conditions, possibly colour-blind.

Given what gets put on the cover of professionally produced work (http://www.psdisasters.com/) this almost seems the least thing to worry about (yes I'm exaggerating).