> Problem with that is that in most company hierarchies code reviewers
> get little  if no credit for their work.

I was more aiming for upstream reviewers being paid for upstream review.
And not so much aiming for work on company level. Without knowing
details, GregKH being hired by the Linux Foundation looks like a good
example to me. There are so many $$$ around in the Linux market, there
should be some left to keep (and better: improve) the quality we all
appreciate.