In reality, a pick that is theoretically worth $10M will probably be worth either nothing or much, much more than that. Draft picks find their expected value "in the tails". The vast majority of picks are worth nothing but the ones who make it are worth a truckload.
But we can't know the talent level of a particular draft and we can't know the talent level of a particular draft pick until years down the road. A decade+.
A draft that looks like s*** before it happens might have a Mike Trout somewhere in the 2nd round, making the entire thing "a great draft".
So the only thing you can sensibly do is average everything out, look at the mean, treat all drafts the same, treat all 22nd overall picks the same, assign dollar values to s***, run the numbers, make decisions, and move forward.