The author seems to say that:
Weber's "Protestant ethic" (1958) = consumption as hedonism, (+ B) = another word for a culture of people buying to much (+B)
B = pragmatically placed in the service of religious beliefs about salvation = Also a culture where people believe service should be spreading their own religious views
From this short passage, we can not tell what the author believes is the wright way for a culture to carry out service to others - we only see a description of Weber's Protestant Ethic, a theory first developed over 100 years ago by a German - about how Capitalism formed. So again, this is not how the writer feels as far as we know. The passage you gave is only describing what "Weber's Protestant Ethic" has come to mean.