I missed the specifics on WAR vs. $$ value, but have looked at baseball reference for a few players--
In 8 seasons, JDM's accumulated WAR is 20.4, and his total salary is $45.7M, about $2.2M per WAR of 1. His WAR last year was 6.4 and his salary $23.8M, which is close to what his salary will be this year. .
In 5 seasons, Mookie's accumulated WAR is 35.2, and his total salary is $12.5M, about $350K per WAR of 1 and a huge savings for the Sox. This year, his arbitration salary will be $20M.
In 11 seasons, Pablo Sandoval's accumulated WAR is 18.4 and total salary is $71.8M--the complete reverse of Mookie and strong evidence for why GM's are more and more reluctant to pay a lot for a little. About $4M per WAR of 1.
In 14 seasons, Hanley Ramirez accumulated WAR is 38.1 vs. a total salary of $159.2M. About $4M per WAR of 1.
Bryce Harper, 7 seasons, accumulated WAR 27.4 vs. total salary of $47.4M, about $1.7M per WAR of 1. His average WAR per season is 27.4/7= 4. If he gets $300M for 10 years and averages a WAR of 4, that's a salary of over $7M per WAR of 1.
Manny Machado, 7 seasons, total WAR of 33.8, total salary of $34M, about $1M/WAR.
Albert Pujols, 18 seasons, accumulated WAR of 100, total salary of $257M, about $2.5M per WAR of 1.
Worth noting: at St Louis, 11 season, accumulated WAR of 86.6, total salary of $104M, about $1.2M per WAR of 1.
At LA an accumulated WAR of 13.5 and a total salary of $153M, about $11M per WAR of 1.