I'm assuming that you are applauding the Dodgers for their willingness to spend big and to sign Mookie to that enormous deal. Two things to also consider about that.
1. As much as they are willing to spend, they too, will not spend without limit. They reset their luxury tax penalty in 2018 (I believe) so that they would be better equipped financially to make such a deal.
2. The most important point. The Dodgers have a topped ranked farm system and have had one for about 10 years. You can accomplish so much more with a strong farm, including breaking the bank on a player like Mookie (even though I still would not have done it). However, Henry might have done it under the conditions that the Dodgers have.
The Red Sox are in no such position, thanks to the 'win now' philosophy of the past few year.