I was amused to find the concept of a "not evil" restaurant here in London.
In London, many restaurants add a 12% service charge. What's interesting is that this restaurant explicitly states that the tip amount goes to the staff, not the restaurant. This is very much the concept of "not evil" that goes into Magnatune's "50% goes to the musician", as opposed to "buy this CD, maybe the musician will get paid, but maybe not".
If you're in London and visiting the Holborn area, eat at "Cigala", a charming rustic-Italian restaurant on Lamb's Conduit.