Then why would anyone else offer any bounty below 1,000,000 nuyen for a live blood mage or toxic shaman? The Will specifies live and to the DIMR (who apparently have bounties of their own out there?). Dead I can understand; DIMR doesn't pay for dead product (except in one case of a blood mage who escaped their custody). But why would the DIMR offer anything on top of a steady million, which would be double the highest offer ever made, much less the usual? The highest bounty out there is 500,000 for a live Toxic by Saeder Krupp (everyone else offers anywhere from 150,000 to 250,000 (INCLUDING the DIMR), and this one is the special snowflake Lion Shapeshifter I've mentioned previously). There's no reason for any of those live bounties to exist at this point unless the Dunkelzhan's Will payments aren't as meaty as they used to be, though who knows why.
I'm more inclined to think:
A- You just get the flat million. (Less Likely)
B- That million is done, for whatever reason. (More LIkely)
Hartfield isn't the only one with a low bounty for his Magic; only 3 of the entire list in Hazard Pay are below 10 Magic, with most being 11 or 12. A Magic 15 Insect Shaman's bounty is at 50,000. I consider this to be due to the low payscale suggested by the games more than anything else. But those are the book numbers; you can run your own numbers at your table (I would), but that isn't the discussion here.