It really isn't that much money anymore, the issue is RHD are somewhat rare. Assuming cap friendly is correct there are only 88 RHD who have played more than 20 games this year, which doesn't even cover 3 per team.
Peeke is the 51st highest paid RHD with guys like Gudbrandson, Gudas, Clifton, Ceci, Holl, Erik Johnson, Schenn, Van Reimsdyk, Schultz, Rutta, Lybushkin, Ristolainen, Barrie, Zaitsev, Murphy all making more/similar money and arguably all 3rd pair dmen themselves. At least the guy we have is 25 and not 30+ years old like many of the above...