It's obvious that many Diggers consider they should have some benefit from their hard work (and it is hard work; just try and get 20% of your stories promoted to the front page and you'll see).
What I propose is very simple: instead of the line:
submitted by XXX 2 days ago (via xxx.com)
put the line
submitted by XXX (website: XXX.com) 2 days ago (via xxx.com)
Or, even more simple, make the submitter's name a link to his website, not his profile.
This way, Diggers would get some amount of traffic from their submission, which they can use as they please. The top Diggers - the ones who put in the most effort and have most stories promoted to front page - would receive more, in proportion, than Digg beginners; but that's only fair.
What's important to say here is that this traffic wouldn't make anyone a millionaire. People will still click on the story in 99.999% of cases. But, if you're good enough, you're going to get a few hits by Diggers who will undoubtedly be interested in your success.