yes! So much so, though, that it leads to other problems not related to spending one’s wad like a teenager. In my experience, this belief can turn into a complete lack of concern for the person’s future condition, and then their health declines. Could write volumes on this
Discussion
IMO, the sweet spot is believing in an afterlife that is made better by how much you improve this world. If you view the money you leave to your children/inheritors as part of a lasting good in the world, it powers a drive to achieve greatness in this life too.
I believe that I witnessed this as well. But I think that the interpretation of this phenomena should be different. In this case life after death might be the ultimate form of inflation. Devaluing your actual life and in the process you don't care for your health and well being in this life anymore only focusing on what is to come.